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Mineral Class 05: Carbonates and Nitrates | |
Carbonate mineral, any member of a family of minerals that contain the carbonate ion, CO3, as the basic structural and compositional unit. The carbonates are among the most widely distributed minerals in the Earth’s crust; generally the carbonate minerals are found at or near the surface. They represent the Earth's largest storehouse of carbon.
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Calcite (with Quartz)
Yizhang Co., Chenzhou Prefecture, Hunan Province, China
Real perfection; 3 solitaire semi - transparent calcite crystals on a thin v-shaped crystallized blade of quartz Dimensions: 40x40x40 mm. Weight 0,034 kilogramme.
32.00 euro
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Cobalto calcite
Bou Azzer District, Tazenakht, Ouarzazate Province, Maroc.
Small, lustrous cluster of lilac-colored cobaltoan calcite from Bou Azzer, Maroc. Measures approximately 90x50x50 mm and weighs approximately 0,34 kilogramme.
36.00 euro
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Golden calcite
USA, Missouri, Boss, Buick mijn.
Nice natural golden, half transparent, Calcite crystal specimen from Missouri, Boss, Buick mine. Measures approximately 60x50x23 mm and weighs approximately 0,04 kilogramme.
20.00 euro
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Rhodochrosite with botryoidally marcasite cystals
Romania, Maramures County, Cavnic Mine, Cavnic
A Romanian classic! Superb specimen of botryoidally marcasite after small laminar calcite crystals and pink rhodochrosite leaves after fine quartz crystals on a pink rhodochrosite matrix. Measures approximately 140x65x35 mm and weighs approximately 0,450 kilogramme.
SOLD
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Mint-green Aragonite with nice microscopic green Fluorite
Tsumeb Mine in Namibia, SW Afrika.
Classic specimen of mint green Aragonite with nice microscopic small deep green cubic Fluorite crystals from Tsumeb Mine in Namibia, SW Afrika. Measures approximately 90x90x60 mm and weighs approximately 0,14 kilogramme.
72.00 euro
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Cerussite with beautiful pink barite
Mibladen, atlas Mountains, Morocco
Here is an interesting specimen from Mibladen, a beautiful (and fluorescent) cluster of cerussite crystals with beautiful pink barite blades. Measures approximately 110x100x650 mm and weighs approximately 1,100 kilogramme.
32.00 euro
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Deep blue azurite crystals
Helvetia mining district, Pima county in the Santa Rita Moutains in south-central Arizona
Sparkling deep blue azurite crystals, with some small malachite balls. Measures approximately 55x30x30 mm and weighs approximately 0,050 kilogramme.
32.00 euro
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Deep green fine crystallized needles of malachite
Beautiful malachite from Mashamba West, Kolwezi, Katanga (Shaba), DRC (Zaïre)
Deep green fine crystallized needles of malachite completely cover-up bladed barite crystals and are scattered very attractively over the transparent pale yellow calcite crystals. Measures approximately 80x70x50 mm and weighs approximately 0,270 kilogramme.
82.00 euro
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