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Specimen List

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Chrysotile

Cinnabar

Mercury ore, the silvery metal is extracted through distillation - this mineral is toxic.

Clinozoisite

Clinozoisite is a complex calcium aluminum sorosilicate mineral.

Coffinite

A dark to pale brown uranium ore. This mineral is radioactive.

Copper

A piece of raw, natural copper.

Corundum, Ruby

Rubies, with their unparalleled beauty and rich history, continue to captivate collectors, jewelers, and enthusiasts worldwide.

Corundum, Sapphire

Corundum is a crystalline form of aluminum oxide, and depending on the color, are sapphires, or rubies

Crocidolite

A fibrous stone also known as Blue Asbestos is the most dangerous form of asbestos.

Crocoite

A toxic lead chromate that used to be used on school buses.

Cuprosklodowskite

Cuprosklodowskite is a secondary uranium mineral formed by alteration of earlier uranium minerals.

Davidite-(Ce)

A rare earth oxide mineral, also containing uranium. This mineral is radioactive.

Davidite-(La)

A rare earth oxide mineral, also containing uranium. This mineral is radioactive.

Deliensite

A uranium bearing, rare hydrous silicate mineral found in metamorphic rocks.

Dendritic Chrysoprase Slab

Chrysoprase is a green variety of chalcedony. Its green color comes from nickel silicate inclusions (commonly willemseite or related Ni minerals), not from chromium or vanadium like in emerald.

Dioptase

Dioptase is an intense emerald-green to bluish-green mineral that is cyclosilicate of copper.

Dolomite on siderite

Dolomite is widely known for its distinct crystal habit, chemical properties, and geological importance.

Elbaite

Elbaite is a mineral in the tourmaline family that is known for its high-quality gemstones.

Epidote

A green to yellow green mineral that comes in many forms.

Fluorite

A Calcium Fluoride mineral that comes in many shapes and colors, unfortunately it's quite soft for gemstone use.

Fuchsite

A chromium-rich, emerald green variety of the mineral muscovite.

Galena

Lead ore - this mineral is toxic.

Garnet, Red

A common mineral that is very hard, and used in everything from jewelry to abrasives.

Gersdorffite

A nickel bearing arsenic sulfide mineral.

Gibbsite

Gibbsite is a mineral that is a key component of bauxite, the primary ore of aluminum.

Goethite, iridescent

Goethite is an iron oxyhydroxide well known since ancient times for its use as a pigment.

Grossular

A highly sought after variety of gem garnet

Guilleminite & Derriksite

A specimen of two Uranium bearing minerals, one yellow, and one green.

Gypsum, Dirty Diamond

Dirty Diamond is a common name for selenite gypsum crystals found in Utah, especially in the Great Salt Lake.

Hematite, Botryoidal

Hematite is a common iron oxide mineral that's found in rocks and soils, and is a primary component of iron ore.

Hematite, Specular

Hematite is a common iron oxide mineral that's found in rocks and soils, and is a primary component of iron ore.

Indigo Gabbro Slab

Indigo Gabbro is a coarse-grained plutonic igneous rock composed mainly of plagioclase feldspar and pyroxene, with accessory olivine, amphiboles, and oxides. It shows a mottled black, gray, and indigo-purple appearance, with hardness around 6–7 Mohs, white streak, and SG ~3. It is found primarily in Madagascar for the gem market and used in lapidary and decorative work.

Iron Pyrite

An iron sulfide mineral commonly referred to as fools gold.

Iron Pyrite, Cubic

An iron sulfide mineral commonly referred to as fools gold.

Iron Pyrite, Octahedral

An iron sulfide mineral commonly referred to as fools gold.

Iron Pyrite, Sun

An iron sulfide mineral commonly referred to as fools gold.

Iron Pyrite, botryoidal

An iron sulfide mineral commonly referred to as fools gold.

Jacinto De Compostela

Red, to a Red Orange quartz named after pilgrims traveling to Santiago de Compostela.

Kamotoite-(Y)

One of 4 currently known yttrium-uranium(uranyl) minerals of the natural salts class.

Kasolite

An uncommon lead uranyl silicate monohydrate mineral.

Kyanite

Kyanite is a typically blue aluminosilicate mineral, found in aluminium-rich metamorphic pegmatites and sedimentary rock.

Labradorite

A feldspar that displays flashing colors known as labradorescence.

Lapis Lazuli Slab Afganistan

Afghan Lapis Lazuli is a metamorphic rock dominated by lazurite with calcite and pyrite. It has a deep ultramarine blue, light blue streak, hardness 5–5.5 Mohs, and SG ~2.7–2.9. Found in Sar-e-Sang, Afghanistan, it has been mined for over 6,000 years and historically valued for jewelry and as the source of ultramarine pigment.

Lapis Lazuli Slab Chile

Chilean Lapis Lazuli (Flor de los Andes, Ovalle, Chile) is a lazurite-rich metamorphic rock with more calcite and diopside than Afghan lapis, giving it a lighter, patchier blue with occasional green and minimal pyrite. It has a light blue streak, hardness 5–5.5 Mohs, and SG ~2.7–2.9. Although considered lower grade than Afghan material, it is important as Chile’s national stone and is widely used for carvings, ornaments, and decorative slabs.

Lazurite

Lazurite is a mineral of both aesthetic and historical importance, with its rich blue color contributing to the renowned beauty of lapis lazuli.

Magnetite

Due to its high iron content, magnetite has long been a major iron ore, and is responsible for humans discovering magnetism, and the creation of the compass.

Malachite, Botryoidal

A botryoidal form of the copper or Malachite.

Malachite, Fibrous

A fibrous form of the copper ore Malachite.

Manganese nodule

A Manganese Nodule believed to create "dark oxygen" from the Schmidt collection.

Marcasite

If you think this is Iron Pyrite, you are wrong! It is a polymorph of Iron Pyrite.

Marthozite

A rare, uranium bearing mineral.

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