Andradite is a species of the Garnet group.

Metatorbernite is a rare, radioactive mineral that belongs to the uranium and phosphate mineral group.

A potassium aluminosilicate with minor amounts of sodium.

A lead arsenate chloride mineral, that frequently takes on the shape of other minerals.

Similar in appearance and feel to graphite, molybdenite has a lubricating effect that is a consequence of its layered structure.

Mookaite Jasper is a silicified radiolarian sedimentary rock (chalcedony) from Mooka Creek, Western Australia, composed mainly of SiO₂ with iron oxide colorants. It has a white streak, hardness 6.5–7 Mohs, SG ~2.6, no cleavage, and a conchoidal fracture. Its earthy reds, yellows, creams, and purples make it highly prized in lapidary and decorative uses, and it is unique to Australia.

While called “jasper,” it is technically a silicified mudstone, not a pure jasper formed only from quartz replacement — but because it’s cryptocrystalline SiO₂ with iron-based coloring, it’s classified and marketed as a jasper.

The original deposits were found along the coast and could only be mined at low tide. This gave the stone mystique in the lapidary world. Later inland deposits were discovered, but the stone remains exclusive to Madagascar.

Orpiment is a fascinating mineral with a striking golden-yellow to orange-yellow color. It is a sulfide mineral composed of arsenic trisulfide and is quite toxic.

A fossil of an extinct nautiloid.

A uranium bearing pegmatite.

A calcium uranyl hydrated phosphate uranium bearing mineral.

“Picture Jasper” describes jasper varieties that show scenic, landscape-like banding or color patterns resembling desert horizons, mountains, or skies. Idaho has some of the most famous examples.

Unlike Ocean Jasper (orbicular), Polychrome Jasper is recognized for its flowing, painterly bands of many colors — hence “polychrome.” It’s unique to Madagascar, making it both geologically and commercially distinct.

Prehnite is a beautiful and relatively uncommon mineral that’s often appreciated by rockhounds, collectors, and crystal enthusiasts alike.

The only natural rock, that floats on water.

Pyrolusite is a mineral consisting essentially of manganese dioxide and is important as an ore of manganese.

A mineral species composed of lead chlorophosphate, sometimes occurring in sufficient abundance to be mined as an ore of lead.

One of the most common minerals found throughout the globe.

The brookite is a long, bladed crystal that is mildly translucent and amber-brown with backlighting.

Chlorite in quartz refers to the presence of green chlorite mineral inclusions within a quartz crystal.

A brownish grey variety of quartz.

Rainbow Jasper is not a single locality-specific jasper, but rather a descriptive name for richly banded, multicolored jasper. It stands out for its earthy rainbow of stripes compared to the orbicular Ocean Jasper or the scenic Picture Jaspers.

Attractive red rhyolite is cut and polished into cabochons, spheres, and carvings. Some named varieties (like Leopard Skin Rhyolite or Rainforest Rhyolite) are popular with collectors.

An oxide mineral comprised of titanium dioxide.

An oxide mineral comprised of titanium dioxide.

A secondary uranium mineral occurring in oxidized zones of uranium deposits.

The name comes from the “sarape” (or “serape”) — a traditional Mexican blanket or textile — because the stone’s banding and color patterns are said to resemble the stripes, color combinations, or woven look of these blankets.

Septarian, correctly known as a septarian nodule or concretion is a fossilized mud ball filled with soft minerals.

Septarian, correctly known as a septarian nodule or concretion is a fossilized mud ball filled with soft minerals.

Septarian, correctly known as a septarian nodule or concretion is a fossilized mud ball filled with soft minerals.

Septarian, correctly known as a septarian nodule or concretion is a fossilized mud ball filled with soft minerals.

Septarian, correctly known as a septarian nodule or concretion is a fossilized mud ball filled with soft minerals.

Shattuckite is a relatively rare copper silicate mineral. It was first discovered in 1915 in the copper mines of Bisbee, Arizona

Siderite is a common iron carbonate mineral, It is primarily composed of iron, carbon, and oxygen.

Sodalite became well known in Canada after being discovered in Ontario in 1891. In fact, sodalite is sometimes referred to as “Princess Blue” because during a royal visit in 1901, the Princess of Wales (later Queen Mary) admired it and had it imported for use in decorating Marlborough House in London.

A zinc sulfide mineral that's the primary ore of zinc.

A rare gemstone usually found alongside Ruby.

Spodumene is a lithium aluminum silicate mineral. It is one of the most important sources of lithium and is typically found in pegmatitic rocks.

A soft, lead-gray mineral that is the primary source of antimony, a lustrous metalloid.

A mineral form of the element Sulfur.

Taramite is a rare member of the amphibole group found at only a handful of localities.

A rare, thorite bearing mineral.

A variety of quartz (SiO₂) with pseudomorphic replacement of crocidolite (blue asbestos, a fibrous amphibole). Exhibits chatoyancy (cat’s-eye effect) caused by fibrous structure reflecting light in parallel bands. This stone started it's life as one of the most deadly stones ever discovered, but has been morphed into what you see today.

A calcium titanium silicate mineral that is a source of titanium metal.

A very hard, yet brittle gemstone that comes in a variety of colors.

Torbernite is a copper uranyl phosphate containing Uranium.

Also known as Schorl, the most common form of tourmaline.

Tremolite exposure has been linked to pleural calcification and mesothelioma in people living in areas where tremolite is a geological component of the soil, or in people living near asbestos mines or factories.

Trilobites are extinct marine arthropods that form the class Trilobita that existed some 500 million years ago.