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Minyulite

Year of discovery: 1933 (Minyulo Well, Australia), 1991 (Japan)

Locality list: 2 localities of minyulite

• KAl₂(PO₄)₂(OH),4H₂O
• KAl₂(PO₄)₂(OH,F),4H₂O
• [K⁺][Al³⁺₂][OH|(PO₄)₂]^7-,4H₂O

• Class: Phosphate - Hydroxide - Hydrate
• Soluble in: hot concentrated HCl, hot concentrated HNO₃, hot concentrated H₂SO₄, NaOH
• Radioactive: Very weak

• Color: Colorless, Green
• Streak: White
• Luster: Vitreous, Silky
• Diaphaneity: Transparent

• Cleavage: Perfect on {001} (1 plane)
• Hardness: 3.5

• System: Orthorhombic
• Group: mm2, Pba2
• Lattice: a=9.3, b=9.7, c=5.5