Chapter: Civil : Engineering Geology : Mineralogy

Hornblende

(COMPOUND-COMPLEX SILICATE) CRYSTAL SYSTEM: Monoc;inic

HORNBLENDE:

(COMPOUND-COMPLEX SILICATE) CRYSTAL SYSTEM: Monoc;inic

HABIT: crystalline

CLEAVAGE: good(prismatic) FRACTURE: conchoidal

COLOUR: dark green, dark brown black

LUSTRE: vitreous

HARDNESS: 5 to 6

SPECIFIC GRRAVITY: 3 to 3.5 (medium)

STREAK: colourless or white

COMPOSITION: hydrous silicates of Ca, Na,

Mg, Al TRANSPARENCY: translucent/opaque

OCCURRENCE: found in igneous rocks

USES: road material

Study Material, Lecturing Notes, Assignment, Reference, Wiki description explanation, brief detail

Civil : Engineering Geology : Mineralogy : Hornblende |