Display & Lapidary Slabs

Home Igneous Sedimentary Metamorphic Rock Cycle Display & Lapidary Slabs Sonora Sunrise Mara Mamba Tiger Iron Chrysoprase Malachite and Cuprite in Matrix Chrysocolla Veins in Matrix Prehnite Azurite, Malachite and Cuprite in Gem Silica Matrix Display & Lapidary Slabs include some of the most interesting and unique polished and un-polished slabs that we can find…

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Topaz Crystals on Rhyolite

Topaz Crystals on Rhyolite Topaz is a mineral that is formed as fluorine-rich vapors rise from cooling lava flows or intrusions of magma. This is how the crystals found at Topaz Mountain in Utah were formed.  The Thomas Range is world-famous for its topaz.  Most of the matrix rock is a white to gray-colored rhyolite…

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Ammonites

Home Igneous Sedimentary Metamorphic Rock Cycle Ammonites Ammonites lived during the Jurassic period (which began about 201 million years ago) all the way till the end of the Cretaceous period (which ended about 66 million years ago). The species had a window of about 140 million years during which Ammonites were present on earth. The…

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Variscite

Variscite Variscite is one of the most sought after minerals in the entire mineral collecting world.  Variscite is a hydrated aluminum phosphate mineral. It is a relatively rare phosphate mineral that is formed by phosphate rich water deposits that react with aluminum rich rocks in a near-surface environment. It occurs as fine-grained masses in nodules,…

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Wulfenite

Wulfenite Wulfenite is a lead molybdate mineral. It is a secondary mineral produced in the oxidized zones of lead and molybdenum deposits. Its  associated minerals are  Calcite, Fluorite, Quartz, Mimetite, Vanadinite,  Galena, Cerussite, Anglesite It is most often found as thin tabular crystals with a bright orange-red to butterscotch color, sometimes even brown to black.…

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Youngite

Youngite Youngite is the name given to the variety of druzy quartz coated, brecciated jasper that is only found in one specific location, in the natural caves and veins in the Mississippian limestone near Guernsey in Platte County, Eastern Wyoming, USA. The most notable locale that produced some excellent specimens is the Hartville Uplift. Although…

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Brazilian Agates

Brazilian Agates, Rough and Uncut Visit our Agates Page for links to cut and polished Agates    https://spiritrockshop.com/agates/   There are at least 15 major Brazilian Agate-producing areas in the country of Brazil. 12 of these are located in the 5 most southeastern states of the country, Rio Grande do Sul, immediately north of Uruguay,…

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