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in igneous environments
Agate slice from Brazil Size-9
Cuprite Chrysocolla and malachite from peruSize-5
particularly oxidized zinc ore deposits
precipitates in sedimentary rocks like sandstone and recrystallizes under heat and pressure in metamorphic rocks like quartzite
Dogtooth calcite in igneous environmentsDog tooth calcite Size 8. 3cm x 7. 1cm x 4cm Weight 179g You will receive the item in the photo Dogtooth calcite (also known as dogtooth spar) is a unique scalenohedral crystal habit of the mineral calcite. It gets its name from its sharply pointed elongated crystal chape that resembles a dogs canine teeth. Mineral class: Carbonate Crystal system: Trigonal Hardness: 3 on the MOHs scale Rock formation: dogtooth calcite does not form its own massive
