$340Median
3Sold (12 mo)
$250Last sale
Hydroxylapatite specimens for sale
4 for sale · $900–$2,830 USD
13 in the gallery
Hydroxylapatite is a calcium phosphate mineral that forms in hexagonal to subhedral crystals, typically presenting a color range from colorless to pale yellow or brown and a vitreous to resinous luster. It commonly occurs in hydrothermal veins and as inclusions in phosphate-rich rocks, with habit varying from elongated prismatic shapes to delicate needle clusters that can display excellent translucence under bright light.
- Formula
- Ca5(PO4)3(OH)
- Rarity
- Common
- Stability
- Stable
- Collector interest
- Moderate Interest
- Classification notes
- Phosphate mineral; apatite group
Key characteristics
- Crystal system
- hexagonal
- Mohs hardness
- 5
- Specific gravity
- 3.14–3.21
- Luster
- vitreous, resinous
- Transparency
- transparent, translucent, opaque
- Color
- colorless, white, gray, brown, yellow, green
- Streak
- white
- Cleavage
- poor
- Fracture
- conchoidal, uneven
- Crystal habit
- prismatic, tabular, granular, massive
- Fluorescent: yellow, orange
Buy Hydroxylapatite specimens
View all 4Where Hydroxylapatite is found
About Hydroxylapatite
Notable specimens come from a variety of localities, including mining districts in Norway, Brazil, Mexico, Namibia, and the United States. In some deposits it forms as radiant aggregates or caves-like crusts, sometimes associated with fluorapatite, calcite, or other phosphate minerals, which makes specific collecting opportunities both challenging and rewarding for mineral enthusiasts.
Collectors prize hydroxylapatite for its clarity, stability, and occurrence in appealing crystal forms. Its phosphate chemistry and potential for rare color zoning or inclusion-rich specimens add interest for those who appreciate mineral optics and the geological settings that produce these specimens.
