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Magnesiorowlandite-(Y)

Year of discovery: 2011 (Japan as the first occurence in the World)

Locality list: A locality of magnesiorowlandite-(Y)

• Y₄MgSi₄O₁₄F₂
• (Y,Ce)₄(Mg,Fe)Si₄O₁₄F₂
• [Y³⁺₄][Mg²⁺][F₂|(Si₂O₇)₂]^14-

• Class: Sorosilicate - Fluoride

• Mg => Fe: Rowlandite-(Y)

• Color: Gray-White
• Streak: White
• Luster: Vitreous
• Diaphaneity: Transparent

• Cleavage: No
• Hardness: 5-5.5

• System: Triclinic
• Group: (-1), P(-1)
• Lattice: a=6.6, b=8.7, c=5.5, α=99.3, β=104.1, γ=91.4