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leucophoenicite
Leucophoenicite is a mineral with formula Mn7(SiO4)3(OH)2. Generally brown to red or pink in color, the mineral gets its name from the Greek words meaning "pale purple-red". Leucophoenicite was discovered in the U.S. State of New Jersey and identified as a new mineral in 1899.
==Description==
Leucophoenicite is normally brown, light purple-red, raspberry-red or pink in color; in thin section it is rose-red to colorless.〔 The name is derived from the Greek words ''leukos'', meaning "pale", and ''foinis'', meaning "purple-red", in reference to its common coloring.〔〔
Leucophoenicite typically occurs as isolated grains or it has granular massive habit. Crystals of the mineral, which occur rarely, are slender, prismatic, elongated, and striated.〔 The mineral forms in a low pressure, hydrothermal environment or in a contact zone in the veins and skarns of a stratiform Zn-Mn ore body.〔
Leucophoenicite is a member of the humite group.〔 It has been found in association with barite, barysilite, calcite, copper, franklinite, garnet, glaucochroite, hausmannite, jerrygibbsite, manganosite, pyrochroite, rhodochrosite, sonolite, spessartine, sussexite, tephroite, vesuvianite, willemite, and zincite.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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