Hydroxylclinohumite specimens for sale
1 for sale · $500 USD
3 in the gallery
Hydroxylclinohumite is a rare member of the humite group, a silica-bearing nesosilicate. It typically forms equant to prismatic or granular crystals with a vitreous to resinous luster, displaying a transparent to translucent appearance in hues of yellow, orange, or brown. Its Mohs hardness around 6 and distinctive monoclinic symmetry give it a compact, robust look that appeals to mineral enthusiasts.
- Formula
- Mg9(SiO4)4(OH)2
- Rarity
- Rare
- Stability
- Stable
- Collector interest
- Moderate Interest
- Classification notes
- Silicates; Nesosilicates; Humite group; Strunz 9.AF.55
Key characteristics
- Crystal system
- monoclinic
- Mohs hardness
- 6
- Specific gravity
- 3.2–3.3
- Luster
- vitreous, resinous
- Transparency
- transparent, translucent
- Color
- yellow, orange, brown
- Streak
- white
- Cleavage
- poor
- Fracture
- subconchoidal, uneven
- Crystal habit
- equant, prismatic, granular
- Gem mineral
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Where Hydroxylclinohumite is found
Top localities
- Trimouns1 specimen
About Hydroxylclinohumite
Notable specimens come from Afghanistan, where collectors prize the mineral for its rarity and classic humite habit. Crystals can be small but well-formed, often presenting pale to warm tones that contrast with white streaks. The mineral’s clear to translucent nature makes it suitable for hand specimens and display pieces, particularly when crystals exhibit sharp termination and clean faces. Its relatively stable chemistry in meteoric or metamorphic environments contributes to its collectability among fans of silicate minerals.
Collectors value hydroxylclinohumite for its place within the Humite group and its striking color range, while its rarity adds niche appeal to curated suites. The mineral’s combination of monoclinic crystal habit, moderate hardness, and resinous-to-vitreous luster translates into pieces that photograph well in display cabinets and can complement other silicate collections.