General Information:
Chemical Formula:K(Mg,Fe++)(Fe+++,Al)[Si4O10](OH)2
Environment:Vesicle lining and coatings in altered volcanics of intermediate to basic compostions.
IMA Status:Accepted IMA 1977
Locality:Mt. Baldo, near Verona, Italy.
Name Origin:Named from the French 'celadon,' sea-green, in allusion to its common color.
Physical Properties: Cleavage:[001] Perfect
Color:gray green or bluish green.
Density:2.95 - 3.05, Average = 3
Diaphaniety:Translucent to opaque
Habits:Earthy - Dull, clay-like texture with no visible crystalline affinities, (e.g. howlite)., Aggregates - Made of numerous individual crystals or clusters., Encrustations - Forms crust-l ike aggregates on matrix.
Hardness:2 - Gypsum
Luster:Earthy (Dull)
Streak:greenish white
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