Zoisite Var. Tanzanite from Merelani Mine, Lelatema Mountains, Arusha Region, Tanzania [TANZANITE7]
Zoisite Var. Tanzanite
Merelani Mine, Lelatema Mountains, Arusha Region, Tanzania
Apophyllite with Scolecite from Jalisgoan, near Jalgoan, Maharashtra State, India [APOPHYLLITE5]
Apophyllite with Scolecite
Jalisgoan, near Jalgoan, Maharashtra State, India
Garnet var. Tsavorite from Merelani Hills, Lelatema Mtns., Arusha Region, Tanzania [TSAVORITE4]
Garnet var. Tsavorite
Merelani Hills, Lelatema Mtns., Arusha Region, Tanzania
Wulfenite from Wulfenite from Villa Ahumada, Sierra de Los Lamentos, Chihuahua, Mexico [WULFENITE3]
Wulfenite
Wulfenite from Villa Ahumada, Sierra de Los Lamentos, Chihuahua, Mexico
Adamite on Limonite from Ojuela Mine, Mapimi, Durango, Mexico [ADAMITE8]
Adamite on Limonite
Ojuela Mine, Mapimi, Durango, Mexico
Corundum Var. Sapphire from Balangoda, near Ratnapura, Sabaragamuwa Province,  Sri Lanka [SAPPHIRE6]
Corundum Var. Sapphire
Balangoda, near Ratnapura, Sabaragamuwa Province, Sri Lanka

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Demantoid Garnets, Hessonites and Herkimer Diamonds



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 page 1 / 2  -  14 specimens selected  -  next  -  bottom  -  Home 




(click on the pictures to enlarge)

Quartz with petroleum inclusions from Zhob Baluchistan, Pakistan [db_pics/pics/quartz7a.jpg] Quartz with petroleum inclusions from Zhob Baluchistan, Pakistan [db_pics/pics/quartz7b.jpg] Quartz with petroleum inclusions from Zhob Baluchistan, Pakistan [db_pics/pics/quartz7c.jpg] Quartz with petroleum inclusions from Zhob Baluchistan, Pakistan [db_pics/pics/quartz7d.jpg]



QUARTZ7 - Quartz with petroleum inclusions
$ 45.00
SOLD
Zhob Baluchistan, Pakistan
thumbnail - 1.8 x 1.5 x 1.2 cm

Once in a great while, I am able to get ahold of this unique material found in Pakistan. this Herkimer Diamond-like Quartz Crystal is included with Petroleum. It looks yellow under normal light, and under long wave ultraviolet it fluoresces a brilliant blue color. A normal clear Quartz would look black or invisible in the bottom two pictures, using the ultraviolet light. It was found in central Pakistan in a region that is war strifed, and dangerous. (no Pakistani mineral dealers ever want to go there!). This is a complete crystal, which is rare for this occurrence, as most crystals are just broken pieces. It weighs 14.53 carats/ 2.91 grams. 




(click on the pictures to enlarge)

Tektite var. Moldavite from near Chlum, Moldau River Valley, Czech Republic [db_pics/pics/moldavite2a.jpg] Tektite var. Moldavite from near Chlum, Moldau River Valley, Czech Republic [db_pics/pics/moldavite2b.jpg] Tektite var. Moldavite from near Chlum, Moldau River Valley, Czech Republic [db_pics/pics/moldavite2c.jpg] Tektite var. Moldavite from near Chlum, Moldau River Valley, Czech Republic [db_pics/pics/moldavite2d.jpg]



MOLDAVITE2 - Tektite var. Moldavite
$ 57.00
SOLD
near Chlum, Moldau River Valley, Czech Republic
miniature - 3.9 x 2.6 x .8 cm

Moldavite is a green tektite. A tektite is an impact glass, created due to the impact of a meteorite with the earth's crust. It is believed that the meteorite that created the Ries Kessel (a massive 15 mile diameter crater), 120 miles away in Germany "splashed," hot material into the atmosphere that cooled as it fell back to Earth. This impact material, landed across a relatively small (10 to 15 square mile) area in the current Czech Republic. This impact event is dated around 15 million years ago. Moldavite miners must dig holes to access this old layer in which the Moldavite is found. Moldavite is typically quite small, with the largest pieces generally available, weighing between 30 to 50 grams (up to 6-7 cm long). Moldavite is valued for its size (larger pieces are much rarer), condition (lack of damage), an attractive green color, and how textured, or "spikey," the surface is. This piece weighs 8.1 grams. It is in pristine condition, and shows a fine color, and a good textured surface. The pic "moldavite 2d," is backlit using a light box (to better show its internal color. The others were shot on white paper.




(click on the pictures to enlarge)

Garnet var. Hessonite from Jeffrey Mine, Asbestos, Quebec, Canada [db_pics/pics/hessonite4a.jpg] Garnet var. Hessonite from Jeffrey Mine, Asbestos, Quebec, Canada [db_pics/pics/hessonite4b.jpg] Garnet var. Hessonite from Jeffrey Mine, Asbestos, Quebec, Canada [db_pics/pics/hessonite4c.jpg]



HESSONITE4 - Garnet var. Hessonite
$ 115.00
SOLD
Jeffrey Mine, Asbestos, Quebec, Canada
thumbnail - 2.9 x 2.8 x .7 cm

This piece is bright and highly reflective. It is flat on the back side, but crystallized not cleaved. This mine has been closed to collecting for years, and getting good specimens has become more difficult each year. This is a gem, and would make an amazing custom pendant for anyone so inclined. It weighs 5.5 grams.




(click on the pictures to enlarge)

Garnet var. Demantoid from Ambanja Dist., Diana Region, Antsiranana Prov., Madagascar [db_pics/pics/demantoid4a.jpg] Garnet var. Demantoid from Ambanja Dist., Diana Region, Antsiranana Prov., Madagascar [db_pics/pics/demantoid4b.jpg]



DEMANTOID4 - Garnet var. Demantoid
$ 65.00
SOLD
Ambanja Dist., Diana Region, Antsiranana Prov., Madagascar
thumbnail - 2.0 x 2.0 x .8 cm

This relatively new deposit of Demantoid garnets were found in a mangrove swamp, on the northwest coast of Madagascar. As is typical in Madagascar, when a few gem pebbles are found, a massive "rush," happens. In this case miners must dig holes 6 - 30 feet deep, but only at low tide. According to my friend who traveled to the site, the best colors were found early on in the strike. As the deposit has played out and gotten deeper, the colors have shifted to a more brownish shade of green. This piece shows a good green color, (the bottom couple crystals turn a little 'cognac,' colored. It is a bright piece. Some of these pieces have a color variance between daylight and fluorescent lighting, this one is quite consistent. It weighs 18.96 ct / 3.79 grams.




(click on the pictures to enlarge)

Garnet var. Demantoid from Ambanja Dist., Diana Region, Antsiranana Prov., Madagascar [db_pics/pics/demantoid3a.jpg] Garnet var. Demantoid from Ambanja Dist., Diana Region, Antsiranana Prov., Madagascar [db_pics/pics/demantoid3b.jpg] Garnet var. Demantoid from Ambanja Dist., Diana Region, Antsiranana Prov., Madagascar [db_pics/pics/demantoid3c.jpg]



DEMANTOID3 - Garnet var. Demantoid
$ 275.00
SOLD
Ambanja Dist., Diana Region, Antsiranana Prov., Madagascar
thumbnail - 1.5 x 1.2 x .9 cm

This relatively new deposit of Demantoid garnets were found in a mangrove swamp, on the northwest coast of Madagascar. As is typical in Madagascar, when a few gem pebbles are found, a massive "rush," happens. In this case miners must dig holes 6 - 30 feet deep, but only at low tide. According to my friend who traveled to the site, the best colors were found early on in the strike. As the deposit has played out and gotten deeper, the colors have shifted to a more brownish shade of green. This piece shows great color, and wonderful transparency. The two crystals are large for this location, each is roughly 1 cm long, and quite bright. Some of these pieces have a color variance between daylight and fluorescent lighting, however this one is consistent and of great quality. My friend paid over $100 US for it in the bush, in Madagascar. For the miner it was equal to several months wages (for a regular job). It weighs 9.73 carats/ 1.95 grams.




(click on the pictures to enlarge)

Garnet var. Demantoid from Ambanja Dist., Diana Region, Antsiranana Prov., Madagascar [db_pics/pics/demantoid2a.jpg] Garnet var. Demantoid from Ambanja Dist., Diana Region, Antsiranana Prov., Madagascar [db_pics/pics/demantoid2b.jpg] Garnet var. Demantoid from Ambanja Dist., Diana Region, Antsiranana Prov., Madagascar [db_pics/pics/demantoid2c.jpg] Garnet var. Demantoid from Ambanja Dist., Diana Region, Antsiranana Prov., Madagascar [db_pics/pics/demantoid2d.jpg]



DEMANTOID2 - Garnet var. Demantoid
$ 175.00
SOLD
Ambanja Dist., Diana Region, Antsiranana Prov., Madagascar
thumbnail - 3 x 2.3 x 1.2 cm

This relatively new deposit of Demantoid garnets were found in a mangrove swamp, on the northwest coast of Madagascar. As is typical in Madagascar, when a few gem pebbles are found, a massive "rush," happens. In this case miners must dig holes 6 - 30 feet deep, but only at low tide. According to my friend who traveled to the site, the best colors were found early on in the strike. As the deposit has played out and gotten deeper, the colors have shifted to a more brownish shade of green. This piece shows great color, and excellent reflectivity. The crystals on this piece are striking, and well 'connected' to one another. Some of these pieces have a color variance between daylight and fluorescent lighting. This one is quite consistent. I demonstrate what the piece looks like with stronger lighting on the third pic. It weighs 32.40 carats/6.48 grams.




(click on the pictures to enlarge)

Garnet var. Demantoid from Ambanja Dist., Diana Region, Antsiranana Prov., Madagascar [db_pics/pics/demantoid1a.jpg] Garnet var. Demantoid from Ambanja Dist., Diana Region, Antsiranana Prov., Madagascar [db_pics/pics/demantoid1b.jpg] Garnet var. Demantoid from Ambanja Dist., Diana Region, Antsiranana Prov., Madagascar [db_pics/pics/demantoid1c.jpg] Garnet var. Demantoid from Ambanja Dist., Diana Region, Antsiranana Prov., Madagascar [db_pics/pics/demantoid1d.jpg]



DEMANTOID1 - Garnet var. Demantoid
$ 75.00
SOLD
Ambanja Dist., Diana Region, Antsiranana Prov., Madagascar
thumbnail - 1.8 x 1.4 x .8 cm

This relatively new deposit of Demantoid garnets were found in a mangrove swamp, on the northwest coast of Madagascar. As is typical in Madagascar, when a few gem pebbles are found, a massive "rush," happens. In this case miners must dig holes 6 - 30 feet deep, but only at low tide. According to my friend who traveled to the site, the best colors were found early on in the strike. As the deposit has played out and gotten deeper, the colors have shifted to a more brownish shade of green. This piece shows great color, and excellent reflectivity. Some of these pieces have a color variance between daylight and fluorescent lighting. This piece is relatively consistent. The crystals cover 200 degrees around the whitish matrix (seen in "demantoid1d") It weighs 13.40 carats/ 2.68 grams.




(click on the pictures to enlarge)

Tektite var. Libyan Desert Glass from Gilf Kebir Region, Egypt [db_pics/pics/dsglass2a.jpg] Tektite var. Libyan Desert Glass from Gilf Kebir Region, Egypt [db_pics/pics/dsglass2b.jpg] Tektite var. Libyan Desert Glass from Gilf Kebir Region, Egypt [db_pics/pics/dsglass2c.jpg] Tektite var. Libyan Desert Glass from Gilf Kebir Region, Egypt [db_pics/pics/dsglass2d.jpg] Tektite var. Libyan Desert Glass from Gilf Kebir Region, Egypt [db_pics/pics/dsglass2e.jpg]



DSGLASS2 - Tektite var. Libyan Desert Glass
$ 50.00
SOLD
Gilf Kebir Region, Egypt
miniature - 4 x 2.3 x 2.2 cm

Libyan Desert Glass is believed to the result of the impact of a large meteorite, or the result of a significant aerial burst explosion around 28.5 million years ago (dated by the fission track method). They are the purest form of natural glass on earth, containing over 96% silica. They were first discovered by ancient Egyptians as evidenced by a scarab beatle carvings found on the mummy of King Tutankhamun. Today they are found in the deep Saharan desert, two days driving into a militarized zone near the border of Libya and Egypt. The leading theory leans towards an aerial burst ten thousand times more powerful than the Hiroshima nuclear detonation (Boslough). Some pieces have dark streaks; chemical analyses of these inclusions show enrichment by meteoritic elements, such as Osmium, with typical chondritic proportions (Koeberl C.). 

This piece is a pleasant, gemmy yellow and shows small white Cristobalite inclusions (a high temperature silica polymorph). It has a neat shape, and weighs 17 grams.




(click on the pictures to enlarge)

Tektite var. Libyan Desert Glass from Gilf Kebir Region, Egypt [db_pics/pics/dsglass1a.jpg] Tektite var. Libyan Desert Glass from Gilf Kebir Region, Egypt [db_pics/pics/dsglass1b.jpg] Tektite var. Libyan Desert Glass from Gilf Kebir Region, Egypt [db_pics/pics/dsglass1c.jpg] Tektite var. Libyan Desert Glass from Gilf Kebir Region, Egypt [db_pics/pics/dsglass1d.jpg]



DSGLASS1 - Tektite var. Libyan Desert Glass
$ 65.00
SOLD
Gilf Kebir Region, Egypt
miniature - 3.7 x 3 x 2 cm

Libyan Desert Glass is believed to the result of the impact of a large meteorite, or the result of a significant aerial burst explosion around 28.5 million years ago (dated by the fission track method). They are the purest form of natural glass on earth, containing over 96% silica. They were first discovered by ancient Egyptians as evidenced by a scarab beatle carvings found on the mummy of King Tutankhamun. Today they are found in the deep Saharan desert, two days driving into a militarized zone near the border of Libya and Egypt. The leading theory leans towards an aerial burst ten thousand times more powerful than the Hiroshima nuclear detonation (Boslough). Some pieces have dark streaks; chemical analyses of these inclusions show enrichment by meteoritic elements, such as Osmium, with typical chondritic proportions (Koeberl C.). 

This piece is a pleasant, gemmy yellow and shows small white Cristobalite inclusions (a high temperature silica polymorph). It weighs 23 grams.




(click on the pictures to enlarge)

Garnet var. Hessonite from Jeffrey Mine, Asbestos, Quebec, Canada [db_pics/pics/hessonite3a.jpg] Garnet var. Hessonite from Jeffrey Mine, Asbestos, Quebec, Canada [db_pics/pics/hessonite3b.jpg] Garnet var. Hessonite from Jeffrey Mine, Asbestos, Quebec, Canada [db_pics/pics/hessonite3c.jpg]



HESSONITE3 - Garnet var. Hessonite
$ 65.00
SOLD
Jeffrey Mine, Asbestos, Quebec, Canada
thumbnail - 2.1 x 1.5 x .7 cm

This is a strange little garnet. It has the most bizarre inclusions within it. They appear golden and sparkly, but I don't know what they are! Hessonites from the Jeffrey Quarry, don't usually have inclusions of any note, which makes this piece unique. To a garnet collector, this is a choice thumbnail. It weighs 14.13 ct/2.82 grams. 



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