Diopside
These samples of diopside are displayed in the Smithsonian Museum of Natural History. Diopside is a silicate mineral of calcium and magnesium with the composition CaMgSi2O6 . The sample above left is about 5x9 cm and is from Outokumpu, Finland. The sample above right is about 6x5 cm and is from Kuopio, Outokumpu, Finland. Both are described as chromian diopside.
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The diopside sample at far left is about 8x8 cm and is from Bird's Creek, Ontario, Canada. At near left, the .5x6 cm sample is from Magog, Quebec, Canada.
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This sample of diopside is from Ala, Piemonte, Italy. The mineral sample is about 4x4 cm and the gem is labeled as 6.9 carats. |
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The diopside mineral sample is about 1.5x1.5 cm and the gem is 8.7 carats. They are from Dekalb, New York.
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The diopside gem at left above is 19.2 carats and is from Madagascar. The mineral sample and gem at right are from Russia. The gem is 3.1 carats.
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This large diopside sample is about 10x15 cm and is from Odegaard, Bamle, Norway.
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This sample of diopside is about 7x8 cm and is described as diopside with calcite. |
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