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$89.00
& FREE ShippingA uniquely textured stone coated in tiny radiating shoots of prismatic Creedite crystal, sporadic pockets of purple and green Fluorite, and a "mystery" white mineral inclusion (possibly Scolecite). We think this chunk of Creedite resembles an astronaut posed on his side with his arm resting under his head. Flip him vertically, and he's waiving at you!
Stone of the Light
						
                           
                          Category:
			
						
						Halides
                          
                           
                           
                           
                          Chemical Formula:
			Ca3SO4Al2F8(OH)2•2H2O
                          
                           
                           
                           
                          Crystal Class:
			
						
						Prismatic
                          
                           
                           
                           
                          Crystal System:
			
						
						Monoclinic
                          
                           
                           
                           
                          Name:
			Creedite
                          
                           
                           
                           
                          Space Group:
			C2/c
                          
                           
                           
                           
                          Strunz Classification:
			3.CG.15
                          
                           
                           
                           
                          Unit Cell:
			a = 13.91 Å, b = 8.58 Å, c = 10 Å; β = 94.4°; Z = 4
                          
                           
                                                      
                        
                           
                           Birefringence: δ = 0.024
                           
                           Cleavage: Perfect {100}
                           
                           Common Colors: Colorless, Orange, Purple
                           
                           Diaphaneity: Transparent to translucent
                           
                           Fracture: Conchoidal
                           
                           Luster: Vitreous
                           
                           Mohs Hardness: 4
                           
                           Optical Properties: Biaxial (-)
                           
                           Refractive Index: nα = 1.461 nβ = 1.478 nγ = 1.485
                           
                           Streak: White
                           
                           Tenacity: Brittle
                           
                        
The Genius Stone
                           
                           Common Colors: Blue, Green, Colorless, Purple, Black, Yellow, Pink
                           
                           Mohs Hardness: 4