$700Median
4Sold (12 mo)
$200Last sale
Cleavelandite specimens for sale
93 for sale · $55–$20,000 USD
429 in the gallery
Cleavelandite is a variety of the feldspar group, typically comprising fibrous or columnar aggregates of pale, translucent crystals. The habit often forms acicular sprays or radiating bundles that display a silky to vitreous luster, and the crystals can be colorless to white, sometimes with a slight pinkish tint. In hand samples, Cleavelandite commonly occurs as a component of pegmatite pockets alongside other quartz and feldspar minerals, and it may be associated with minerals like quartz, muscovite, and tourmaline.
- Formula
- Na(AlSi3O8)
- Rarity
- Common
- Stability
- Stable
- Collector interest
- Moderate Interest
- Classification notes
- Tectosilicate; feldspar, plagioclase group (NaAlSi3O8)
Key characteristics
- Crystal system
- triclinic
- Mohs hardness
- 6–6.5
- Specific gravity
- 2.6–2.65
- Luster
- vitreous, pearly
- Transparency
- transparent, translucent
- Color
- colorless, white, gray, pink
- Streak
- white
- Cleavage
- perfect
- Fracture
- uneven, subconchoidal
- Crystal habit
- tabular, bladed, massive, granular
Buy Cleavelandite specimens
View all 93Where Cleavelandite is found
Top localities
- Himalaya Mine45 specimens
- Paprok28 specimens
- Little Three Mine26 specimens
- Pederneira mine22 specimens
- Dara-e-Pech District22 specimens
- Shigar Valley16 specimens
- Afghanistan15 specimens
- Stak Nala12 specimens
- Mawi pegmatite9 specimens
- Stewart Mine9 specimens
About Cleavelandite
Notable specimens have been reported from premier pegmatite localities in the United States, Pakistan, Brazil, Afghanistan, and Russia. Specimens from these regions are valued for their delicate, elongated forms and the way the fibrous crystals catch the light, creating a soft, ethereal appearance. Collectors seek Cleavelandite for its structural variety, the reliability of axial or radial crystal groups, and its contrast when displayed with darker matrix minerals.
