একটি সাদা বা রঙিন monoclinic চন্দ্রকান্তমণি

orthoclase's Usage Examples:

Orthoclase, or orthoclase feldspar (endmember formula KAlSi3O8), is an important tectosilicate mineral which forms igneous rock.

Microcline forms during slow cooling of orthoclase; it is more stable at lower temperatures than orthoclase.

Common felsic minerals include quartz, muscovite, orthoclase, and the sodium-rich plagioclase feldspars (albite-rich).

granite is a hornblende-biotite granite containing large round crystals of orthoclase each with a rim of oligoclase (a variety of plagioclase).

of regular exsolution layers (lamellae) of different alkali feldspars (orthoclase and sodium-rich plagioclase).

Trondhjemite is an orthoclase-deficient variety of tonalite with minor biotite as the only mafic mineral.

potassium: Orthoclase (endmember formula KAlSi3O8), an important tectosilicate mineral that forms igneous rock Microcline, chemically the same as orthoclase, but.

intense than other beaches in the Park, the result of a high content of orthoclase minerals in the eroded granite sands of the vicinity.

Its chemical formula is KAlSi3O8, which is polymorphic to orthoclase.

rock similar to granite, but containing more plagioclase feldspar than orthoclase feldspar.

effect is sometimes seen in orthoclase: hence two kinds of sunstone are distinguished as "oligoclase sunstone" and "orthoclase sunstone".

Other common minerals include quartz, orthoclase, talc, carbonate minerals and amphibole (actinolite).

rock type quartz-diorite (>5% quartz) or tonalite (>20% quartz), and if orthoclase (potassium feldspar) is present at greater than 10 percent, the rock type.

Sericite is produced by the alteration of orthoclase or plagioclase feldspars in areas that have been subjected to hydrothermal.

Associated minerals include: epidote, tremolite, glaucophane, orthoclase, quartz and calcite.

intrusive, felsic, igneous rock that has an approximately equal proportion of orthoclase and plagioclase feldspars.

Of these the former consists of orthoclase, nepheline, sodalite, diopside and aegirine, biotite and sphene.

Typically the host grain is orthoclase or microcline, and the lamellae are albite.

For example, melting of orthoclase (KAlSi3O8) produces leucite (KAlSi2O6) in addition to a melt.

orthoclase's Meaning':

a white or colored monoclinic feldspar