Crystals and minerals - white

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A mass of delicate straight crystals. I do not know what kind of crystal these are. Mounted on a black onyx base.
  • 7/8 inch (2.2 cm) wide, 1/2 inch (1.3 cm) deep, just under 3/8 inch (0.95 cm) high, #1606, $10
Gypsum Tall thin crystals of gypsum from Sonora, Mexico, on a black walnut base.
  • 1/2 inch (1.3 cm) square, 7/8 inch (2.2 cm) high, #887, Sold
Calcite Calcite from Arizona, on a black walnut base.
  • 7/8 inch (2.2 cm) wide, 3/4 inch (1.9 cm) deep, 11/16 inch (1.75 cm) high, #810, Sold