minerals
DESCRIPTION
Minerals. Achj,phap. Aquamarine. Hardness: 7 ½ - 8 Color: Light blue, Blue, Blue – Green. Luster: Vitreous Streak: White. Turquoise. Color: Is of course, turquoise, but this color actually varies from greenish blue to sky blue shades. - PowerPoint PPT PresentationTRANSCRIPT
MINERALSAchj,phap
Aquamarine Hardness: 7 ½ - 8 Color: Light blue, Blue, Blue – Green. Luster: Vitreous Streak: White
Turquoise Color: Is of course, turquoise, but this
color actually varies from greenish blue to sky blue shades.
Cleavage: Is perfect in two direction ,not often seen.
Fracture: Conchoidal and smooth. Streak: White with a greenish tint.
Jadeite Luster: Waxy, greasy; pearly on cleavage
surfaces. Polished material may be vitreous.
Fracture: Splintery, uneven. Cleavage: 1,2 - prismatic at cleavage
angles of 87º and 93º. Color: Light to dark green, cream, gray,
and white. May also be a mixture of white and light green. Occasionally also yellow, pink, purple, brown, and black.
Pectolite
Color: White, Grey, Light Pink, And Light Green. Streak: White. Fracture: Splintery - Thin, elongated fractures produced
by intersecting good cleavages or partings. Luster: Vitreous - Silky