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Amethyst Geode with Stand, Unique Specimen You will receive precisely the item depicted on this page. The Science Amethyst is a rare, violet variety of quartz. It's formed in voids underneath volcanic rock...
Aragonite Crystals Aragonite was named in 1797 for Aragon, the Spanish city near the location where the type specimens were found. It comes in many forms, including columns, fibrous or hexagonal crystals. Aragonite is a...
Brazilian Agate Coaster The Science: Agate is a type of chalcedony - a cryptocrystalline variety of silica. Often associated with volcanic activity, it is also found in metamorphic and fossiliferous rock. Agate forms in...
Brazilian Agate Coasters - Set of Six The Science: Agate is a type of chalcedony - a cryptocrystalline variety of silica. Often associated with volcanic activity, it is also found in metamorphic and fossiliferous rock...
Brazilian Agate Geode The Science: Agate is a type of chalcedony - a cryptocrystalline variety of silica. Often associated with volcanic activity, it is also found in metamorphic and fossiliferous rock. Agate forms in...
Brazilian Agate Geode - Large The Science: Agate is a type of chalcedony - a cryptocrystalline variety of silica. Often associated with volcanic activity, it is also found in metamorphic and fossiliferous rock. Agate...
Brazilian Agate The Science: Agate is a type of chalcedony - a cryptocrystalline variety of silica. Often associated with volcanic activity, it is also found in metamorphic and fossiliferous rock. Agate forms in rock...
Chalcanthite Chalcanthite is a delicate mineral admired and collected because of its intense blue color. It is a water-soluble sulfate that forms in mine walls in copper deposits. Chalcanthite has several alternative names,...
Charoite Sphere, Unique You will receive precisely the item depicted on this page. THE SCIENCE Charoite is a rare silicate mineral that was only first described in 1978. It can only be found in the Aldan...
Amethyst Heart The Science Amethyst is a rare, violet variety of quartz. It's formed in voids underneath volcanic rock. The majority of amethyst is found in South America, specifically Brazil and Uruguay. The...
Copper Nugget Copper is a ductile metal with an excellent thermal and electrical conductivity. Pure copper is a fairly soft metal and has a pinkish or peachy color. It is an essential trace nutrient to all high plant and...
Copper Sphere Copper is a ductile metal with an excellent thermal and electrical conductivity. It is rather supple in its pure state and, when fresh, has a pinkish or peachy color. It is an essential trace nutrient to all...
Fluorite Point Fluorite is a colorful and complex mineral. In addition to its beauty, it has many scientific and industrial applications. For example, it is useful during the smelting process, and has even be fashioned into...
Real 22kt Gold Gold is a type of metal that is characterized by its density, softness, and shine. It is also the most malleable and ductile metal known to man. Pure gold features a bright yellow color and luster, and is...
Hand-carved Malachite Box The Science Malachite is a beautiful green mineral most often found in fissures and hollows near copper deposits, from which it obtains its vibrant hue. Historically, it was prized because of...
Italian Marble Coaster - Mammoth This striking skeleton, labeled "Fossil Elephant of Siberia" is that of a Mammoth, an 1836 engraving by William H. Lizars from The Naturalist's Library by Sir William Jardine...
Italian Marble Coaster - Rhinoceros This striking skeleton is that of a rhinoceros, an 1836 engraving by William H. Lizars from The Naturalist's Library by Sir William Jardine (1800-1874), a Scottish naturalist...
Kanab Picture Sandstone Sculpture THE SCIENCE Sandstone is a type of sedimentary rock, composed mainly of sand, but also other elements, notably cement, which creates those darker lines. Over millions of years, sands and...
Large Celestite Geode Celestite is a mineral consisting of strontium sulfate. The mineral is named for its occasional delicate blue color. Celestite and the carbonate mineral strontianite are the principal sources of the...
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