Skip To Content
Go to gemstones.com homepage
Sign In
Recommended searches
Gemopedia
  • Ruby
  • Sapphire
  • Tanzanite
  • Diamond
  • Emerald
  • Opal
  • Moissanite
  • Peridot
  • All Gemstones in Gemopedia
Shop Gemstones
  • Shop Jedora Gemstones
  • Shop JTV Gemstones
Videos
  • All About Black Diamonds
  • Unboxing a Million Dollars in Gemstones!
  • Unboxing Emeralds: Gemologist vs. Geologist
  • Unboxing Rough Diamonds
  • Unboxing Garnet: Rhodolite, Pyrope, Demantoid
  • Marvel Cinematic Gemstones
  • All About Pearls and How They're Made
  • Fun Facts About Tanzanite
  • Freshwater Pearls vs. Saltwater Pearls
  • All Videos
Articles
  • Gemstone Collecting
  • Gemstone Beauty
  • Gemstone Color
  • Gemstone Origins
  • Optical Properties
  • Rare Gemstone Collecting
  • Gemstone Luster
  • Phenomenal Gemstones
  • All Articles
Showcase Collections
  • Quartz Gemstones
  • Organic Gemstones
  • American Gemstones
  • Birthstones
  • Mineral Specimens
  • Colors of Tourmaline
  • All Showcases
About Us
  • About Us
Feedback
  • Survey
Account
  • Account Information
  • Author Biography
  • Articles
  • Gemstones Home
  • Gemopedia

Celestite

Celestite

By Tim Matthews, JD, FGA, GG, DGA,
CEO and President of JTV (retired)
Published: June 2014
Modified: March 2022
Celestite Polished Celestite Rough
  • Facebook
  • Twitter
  • Copy Link
Table of Contents
  • General Information
  • Celestite Colors
  • Alternate Names
  • Countries of Origin
  • Care

Celestite, also called celestine, is named for the Latin coelestis, meaning "heavenly," in reference to its often sky-blue color. This unique gem often forms beautiful transparent to blue tabular crystals, but it can also be colorless, white, light red, green, blue or brown.

General Information

  • Classification
  • Optical Properties
  • Characteristic Physical Properties
  • Chemistry & Crystallography
Common Name
Celestite
Species
Celestite
Transparency
Transparent - Translucent
Dispersion
Strength: None
Refractive Index
1.619-1.635
Birefringence
0.010- 0.012
Optic Character
Biaxial
Optic Sign
Positive
Polariscope Reaction
Doubly Refractive (DR)
Fluorescence
SWUV: Inert to weak display same as bodycolorMight phosphoresce
LWUV: Inert to weak display same as bodycolorMight phosphoresce
Pleochroism
Trichroic, unobservable or weak, varying shades of body color
Hardness
3-3.5
Streak
White
Specific Gravity
3.970-4.000
Toughness
Poor
Inclusions
Celestite is a rare mineral that can contain liquid inclusions and partially healed fractures.
Luster
Vitreous
Fracture
Uneven
Cleavage
Perfect, in one direction, Good, in one direction, Poor, in one direction
Chemical Name
strontium sulfate
Chemical Formula
SrSO4
Crystal System
Orthorhombic
Chemistry Classification
Sulfate

Celestite Colors

  • Black Celestite
    Black
  • Blue Celestite
    Blue
  • Blue Celestite
    Blue
  • Brown Celestite
    Brown
  • Colorless Celestite
    Colorless
  • Green Celestite
    Green
  • Orange Celestite
    Orange
  • Pink Celestite
    Pink
  • White Celestite
    White

Alternate Names

Celestine

Countries of Origin

Papua New Guinea; Angola; Kazakhstan; Portugal; Oman; Bahamas; Greece; Austria; Latvia; Mongolia; Mozambique; Morocco; Unknown; Brazil; Algeria; Slovenia; Chile; Argentina; Iran (Islamic Republic of); Hungary; Japan; Ukraine; Bolivia (Plurinational State of); India; New Zealand; Canada; Turkey; Belgium; Namibia; Finland; Italy; South Africa; Antarctica; Turkmenistan; Germany; Yemen; Tanzania, United Republic Of; Afghanistan; Russian Federation; Viet Nam; Czechia; United States of America; Egypt; Madagascar; United Kingdom of Great Britain and Northern Ireland; Libya; Netherlands; Sweden; Pakistan; Malawi; China; Ireland; Qatar; Poland; Slovakia; Bulgaria; France; Jordan; Tunisia; Kyrgyzstan; Croatia; Romania; Uzbekistan; Switzerland; Spain; Mauritania; Norway; Congo (the Democratic Republic of the); Mexico; Israel; San Marino; Australia; Greenland; Tajikistan; Indonesia

Care

Some celestite might lose color upon heating or exposure to sunlight. It has a low mohs hardness and can be scratched easily. Slightly soluble in water and soluble in hot concentrated acids or alkali carbonate solutions.

Instagram
Facebook
YouTube

Sign up for the latest from Gemstones.com!

 
 
  • About Us
  • Terms & Conditions
  • Privacy Policy
  • Sitemap
  • Contact Us
  • Request a Partner Invitation
  • Your Privacy Choices CCPA Icon

©  America's Collectibles Network, Inc. All Rights Reserved.