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This is a very select specimen of DEMANTOID GARNET that came from well-known deposits in a mangrove ..
This is a spectacular specimen of yellow BARITE crystals from the Rust Buckeet Pocke, 1375' level, M..
JAPAN-LAW TWIN QUARTZ crystals of this size and quality are very rare. They sometimes look like rabb..
This is a fine "chocolate" opal from Ethiopia, which displays brilliant flashes of red, orange and g..
This is a very choice specimen of BARYTE crystals from the Cerro Warihuyn, Miraflores, Huamalies Pro..
The creamy white barite on this specimen from Elmwood is formed into 2 intersecting mounds, which ar..
Here's a really superb specimen of FIBROUS MALACHITE (also called velvet or silky malachite) which w..
This beautiful specimen of gem-grade, precious fire agate is nestled within a matrix of white chalce..
Here's a 100% natural, untreated crystal of TANZANITE. The color is outstanding - a vibrant cornflow..
These gemmy almandine garnets shine like burning embers in a fire, when backlit in a window or with ..
This is a fine example of sheet (float) copper that occurred in a vein in the fabled Caledonia coppe..
Here is a very choice specimen of the rare copper silicate mineral SHATTUCKITE. It is colored a brig..
This specimen of golden RUTILE and metallic HEMATITE comes from Novo Horizonte, Bahia, Brazil. This ..
Many people argue that the AMETHYST from the Piedra Parada locality in Vera Cruz, Mexico is the most..
Here is a terrific specimen of well-crystallized AMETHYST quartz from Karur, Chenai (Madrass), South..
This choice, brightly colored specimen of botryoidal PREHNITE with EPIDOTE came out of Bendoukou, Sa..
This is a superb specimen of GALENA (Lead Sulfide) from the Krushev Dol Mine, Madan, Rhodope Mountai..
Here's a wonderful jewel-like crystal of sunshine yellow BRAZILIANITE on white ALBITE from the Teler..
Here's a specimen with three sharp, earthy green twinned crystals of APATITE from the Sapo Mine, Goi..
Here's a breathtaking CLEAR QUARTZ crystal from Diamantina, Minas Gerais, Brazil. The quartz is brig..
Showing 4741 to 4760 of 4978 (249 Pages)
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