...parts of the mineral with a knife, the separated parts fall to a powder. Ex. kerolite, cale spar. 99. Solid minerals may be either brittle, sectile, malleable,...or elastic. Fluids are either gaseous or liquid. 2. Sedile ; when the detached parts do not fall to a powder. This character is intermediate between brittle...

...light, and the file should be passed three or four times over the specimen. 2. STATE OF AGGREGATION. 99. Solid minerals may be either brittle, sectile, malleable,...flexible, or elastic. Fluids are either gaseous or liquid. 1. Brittle; when on detaching parts of the mineral with a knife, the separated parts fall to a powder....

...has been found that the faces of the cube and octahedron are not exactly alike in this respect.* II. TENACITY. 1. Brittle ; when parts of a mineral separate...or elastic. Fluids are either gaseous or liquid. 2. Si;ctile; when pieces may be cut off with a knife without fallingto powder, but still the mineral pulverizes...

...mineral pulverizes under a hammer. This character is intermediate between brittle and malleable ; gypsum. 1. Brittle ; when parts of a mineral separate in powder or grains on attempting to cut it ; kerolite, cale spar. 4. Flexible ; when the mineral will bend, and remain bent after the bending force is removed;...

...the file wears down the specimen rapidly, although tho par tides are very hard. STATE OF AGGREGATION. Solid minerals may be either brittle, sectile, malleable,...flexible or elastic. Fluids are either gaseous or liquid. 1. Brittle : when parts of the mineral separate in powder on attempting to cut it. 2. Seclile : when...

...file wears down the specimen rapidly, although the par tides are very hard. STATE OF AGGRF.GATIOX. Solid minerals may be either brittle, sectile, malleable,...flexible or elastic. Fluids are either gaseous or liquid. 1. Brittle : when parts of the mineral separate in powder on attempting to cut it. 2. Sectile : when...

...the file wears down the specimen rapidly, although the par tides are very hard. STATE OF AGGREGATION. Solid minerals may be either brittle, sectile, malleable,...flexible or elastic. Fluids are either gaseous or liquid. 1. Brittle : when parts of the mineral separate in powder on attempting to cut it. 2. Sectile : whon...

...the file wears down the specimen rapidly, although the par tides are very hard. STATE OF AGGREGATION. Solid minerals may be either brittle, sectile, malleable,...flexible or elastic. Fluids are either gaseous or liquid. 1. Brittle: when parts of the mineral separate in powder on attempting to cut it. 2. Sectile : when...

...connecting the extremities of these radii is the curve of hardness for the given plane. C. TENACITY. (a) Brittle; when parts of a mineral separate in powder or grains on attempting to cut it; calcite. Solid minerals may be either brittle, sectile, malleable, flexible, or elastic. (b) Sectile...

...connecting the extremities of these radii is the curve of hardness for the given plane. C. TENACITY. (a) Brittle; when parts of a mineral separate in powder or grains on attempting to cut it; calcite. Solid minerals may be either brittle, sectile, malleable, flexible, or elastic. (b) Sectile...