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Orthoclase feldspar is a tectosilicate mineral which is most commonly found in igneous rock. It has a Mohs hardness of 6 and has two cleavage planes which occur at right angles to each other. It is the potassium endmember of the feldspar group of minerals and is also referred to as alkali feldspar or K-spar. Orthoclase will appear in colors from white to deep pink, but has a white streak.
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∙ 14y ago
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∙ 16y agoOrthoclase feldspar can be found in granite rock as the white or pinkish appearing crystals.
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∙ 12y agoOrthoclase rocks are white or colored monoclinic feldspars, hard crystalline aluminum silicates of potassium, sodium, calcium or barium.
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∙ 13y agoDue to the movement of plates in the Earth's crust, orthoclase could be mined anywhere. I have found some orthoclases in Gatlinburg, Tenessee
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∙ 14y agoOrthoclase is a mineral.
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Is orthoclase a silicate?
yes,orthoclase is a silicate mineral
Which mineral pyroxene or orthoclase crystallizes from magma first?
pyroxene
What is feldpars hardness?
Orthoclase comes in as 6 on Mohs scale of mineral hardness:- Talc, Gypsum, Calcite, Fluorite, Apatite, Orthoclase, Quartz, Topaz, Corundum, Diamond;
What is the luster of orthoclase?
Depending on the variety, feldspars can range from adamantine to glassy in luster.
Is quartz a mineral or a rock mineral rock Submit?
mineral
Where is the mineral orthoclase found?
The mineral orthoclase is found all over the world. It can also be found in Granite rock. It would be the pink or white crystals in it.
Is orthoclase a silicate?
yes,orthoclase is a silicate mineral
What is adularia?
Adularia is a form of orthoclase feldspar, a mineral which forms igneous rock, found in white prismatic crystals.
A mineral with a hardness of 6?
Orthoclase feldspar is 6 on the Mohs scale of mineral hardness.
Which mineral will scratch glass but not pyrite?
orthoclase
What mineral group is orthoclase feldspar in?
silicates
What mineral makes granite?
Orthoclase feldspar
What gem or mineral that is not an opal starts with o?
Orthoclase
Which mineral has a hardness of 6 and has cleavage?
Orthoclase Feldspar.
What mineral has hardness of 6?
Orthoclase feldspar is 6 on the Mohs scale of mineral hardness.
Which mineral pyroxene or orthoclase crystallizes from magma first?
pyroxene
What elements make up the mineral rhyolite?
Rhyolite is a rock, not a mineral. Common minerals in it are quartz, orthoclase, and albite. The chief elements in rhyolite are silicon, oxygen, aluminum, sodium, and potassium with other elements in small amounts.
