Prehnite Stalactite — Miniature

$146.27
Chemical FormulaCa₂Al(Si₃Al)O₁₀(OH)₂
Crystal SystemOrthorhombic
Mohs Hardness6–6.5
Specific Gravity2.80–2.95
LusterVitreous to waxy
TransparencyTranslucent

Prehnite’s pale pistachio green is among mineralogy’s most soothing colors. Quebec’s Jeffrey Mine (now called the LAB Chrysotile mine) produced spherical and stalactitic prehnite o…

19 in stock

SKU: TC-MIN-0219
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Description

Every mineral is a story of chemistry, pressure, and patience. Prehnite’s pale pistachio green is among mineralogy’s most soothing colors. Quebec’s Jeffrey Mine (now called the LAB Chrysotile mine) produced spherical and stalactitic prehnite of remarkable quality. The mineral was the first named after a person — Dutch Colonel Hendrik von Prehn, who brought specimens from South Africa in 1774.

This specimen originates from Jeffrey Mine, Asbestos, Quebec, Canada, one of the world’s most significant localities for this type of material. Collectors and scientists have drawn from this region for generations, and for good reason: the combination of geological conditions here produces specimens of exceptional quality and clarity.

Every specimen is unique. Photographs approximate the visual experience, but the real thing — its weight, its luster under a raking light, the way it catches the corner of your eye — can only be experienced directly.

Formation

This specimen formed through geological processes operating over timescales that dwarf human history. The specific combination of chemistry, temperature, pressure, and time at this locality produced material of exceptional quality that makes it a valued addition to any serious collection.

Locality

Prehnite Stalactite — Miniature from Jeffrey Mine, Asbestos, Quebec, Canada. This locality is known for producing specimens of exceptional quality.

Collector Notes

Best displayed where natural light can play across the surfaces at different times of day.