Celestite Value Guide

This pale blue Celestite specimen from Madagascar is highly collectible due to its delicate druzy texture and its association with the 'celestial' sky-blue hue first described in 1799. As a strontium sulfate mineral, it represents a classic example of the high-quality deposits found in the Sakoany mine region during the 2020-2024 period.

What affects the value of Celestite?

• The vibrancy and saturation of the pale blue color significantly impact the $10-$12 price point.
• The uniformity and coverage of the fine crystalline druzy texture across the rough specimen.
• The overall size and structural integrity of the mineral cluster.
• The specific origin from Madagascar, which is the premier source for this mineral variety.

How to Identify Celestite?

• Look for the characteristic pale sky-blue color consistent with high-quality Madagascar deposits.
• Examine the surface for a fine crystalline druzy texture rather than large, isolated crystals.
• Verify the weight, as strontium sulfate is notably denser than many similar-looking quartz-based minerals.
• Check for the absence of artificial dyes, as authentic Celestite maintains a soft, natural pastel tone.

History of Celestite

Celestite, also known as Celestine, derives its name from the Latin word 'caelestis' meaning celestial or heavenly, referring to its characteristic sky-blue color. It was first officially described in 1799 based on specimens found in Pennsylvania, though the most famous high-quality deposits were later discovered in Madagascar.