List of minerals and Spessartine

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Difference between List of minerals and Spessartine

List of minerals vs. Spessartine

This is a list of minerals for which there are articles on Wikipedia. Spessartine, sometimes mistakenly referred to as spessartite, is a nesosilicate, manganese aluminium garnet species, Mn2+3Al2(SiO4)3.Gemological Institute of America, GIA Gem Reference Guide 1995, The mineral spessartine should not be confused with a type of igneous rock (a lamprophyre) called spessartite. Spessartine's name is a derivative of Spessart in Bavaria, Germany, the type locality of the mineral. It occurs most often in granite pegmatite and allied rock types and in certain low-grade metamorphic phyllites. Sources include Australia, Myanmar, India, Afghanistan, Israel, Madagascar, Tanzania and the United States. Spessartine of an orange-yellow has been called Mandarin garnet and is found in Madagascar. Violet-red spessartines are found in rhyolites in Colorado and Maine. In Madagascar, spessartines are exploited either in their bedrock or in alluvium. The orange garnets result from sodium-rich pegmatites. Spessartines are found in bedrock in the highlands in the Sahatany valley. Those in alluvium are generally found in southern Madagascar or in the Maevatanana region. Spessartine forms a solid solution series with the garnet species almandine. Well-formed crystals from this series, varying in color from very dark-red to bright yellow-orange, were found in Latinka, Rhodope Mountains, Kardzhali Province, Bulgaria. Spessartine, like the other garnets, always occurs as a blend with other species. Gems with high spessartine content tend toward a light orange hue, while almandine prevalence induces red or brownish hues.

Almandine

Almandine, also known incorrectly as almandite, is a species of mineral belonging to the garnet group.

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Aluminium

Aluminium or aluminum is a chemical element with symbol Al and atomic number 13.

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Andradite

Andradite is a species of the garnet group.

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Garnet

Garnets are a group of silicate minerals that have been used since the Bronze Age as gemstones and abrasives.

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Gemstone

A gemstone (also called a gem, fine gem, jewel, precious stone, or semi-precious stone) is a piece of mineral crystal which, in cut and polished form, is used to make jewelry or other adornments.

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Grossular

Grossular is a calcium-aluminium species of the garnet group of minerals.

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Lamprophyre

Lamprophyres (Greek λαµπρός (lamprós).

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Mineral

A mineral is a naturally occurring chemical compound, usually of crystalline form and not produced by life processes.

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Mineral collecting

Mineral collecting is the hobby of systematically collecting, identifying and displaying mineral specimens.

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Pyrope

The mineral pyrope is a member of the garnet group.

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Tsavorite

Tsavorite or tsavolite is a variety of the garnet group species grossular, a calcium-aluminium garnet with the formula Ca3Al2Si3O12.

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Uvarovite

Uvarovite is a chromium-bearing garnet group species with the formula: Ca3Cr2(SiO4)3.

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