Macdonaldite
BaCa₄Si₁₆O₃₆(OH)₂·10H₂O
Phyllosilicate mineral
Properties
- Chemical formula
- BaCa₄Si₁₆O₃₆(OH)₂·10H₂O
- Group
- Silicates
- Crystal system
- Orthorhombic
- Hardness (Mohs)
- —
- Color
- Colorless
- Luster
- —
- Streak
- White
- Density
- —
- Cleavage
- —
- Fracture
- —
- Tenacity
- —
- Crystal habit
- —
- Transparency
- —
- Space group
- —
- Fluorescence
- —
- Magnetism
- —
- Radioactivity
- —
- Refractive index
- —
- Optical character
- —
- Birefringence
- —
- Pleochroism
- —
- Strunz classification
- 9.EB.05
- Dana classification
- 72.5.1.3
- IMA status
- Approved mineral and/or valid name (A)
- IMA symbol
- Mcd
- Locality
- 🇺🇸 Esquire No. 7 claim
- Type locality
- —
- Discovery year
- —
Etymology
Named after Gordon A. MacDonald
Source: Wikidata
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