Definitions Found:
a very hard rock
- kinglea very hard rock
- kinglesKINGLE, a very hard rock
- graniticvery hard, coarse-grained rock
- granitesvery hard, coarse-grained rock
- granitevery hard, coarse-grained rock
- whinstonea hard and compact rock also WHUNSTANE
- basaltthe dark, hard rock from a volcano
- basalticthe dark, hard rock from a volcano
- basaltsthe dark, hard rock from a volcano
- whunstane(Scots) a hard and compact rock also WHINSTONE
- whinstonesWHINSTONE, a hard and compact rock also WHUNSTANE
- whunstanesWHUNSTANE, (Scots) a hard and compact rock also WHINSTONE
- mylonitiseto turn into mylonite, a hard, streaky, often granular rock produced by crushing
- myloniticof or like mylonite, a hard, streaky, often granular rock produced by crushing
- mylonitizeto turn into mylonite, a hard, streaky, often granular rock produced by crushing
- mylonitisingMYLONITISE, to turn into mylonite, a hard, streaky, often granular rock produced by crushing
- mylonitizedMYLONITIZE, to turn into mylonite, a hard, streaky, often granular rock produced by crushing
- mylonitisedMYLONITISE, to turn into mylonite, a hard, streaky, often granular rock produced by crushing
- mylonitizingMYLONITIZE, to turn into mylonite, a hard, streaky, often granular rock produced by crushing
- mylonitisesMYLONITISE, to turn into mylonite, a hard, streaky, often granular rock produced by crushing
- mylonitizesMYLONITIZE, to turn into mylonite, a hard, streaky, often granular rock produced by crushing
- porphyriesA hard igneous rock containing crystals, usually of feldspar, in a fine-grained, typically reddish groundmass
- porphyryA hard igneous rock containing crystals, usually of feldspar, in a fine-grained, typically reddish groundmass
- novaculiteA hard, dense, fine-grained siliceous rock resembling chert, with a high content of microcrystalline quartz
- ignimbritea hard rock formed by fusion of the volcanic fragments and dust of a nuee ardente
- ignimbritesIGNIMBRITE, a hard rock formed by fusion of the volcanic fragments and dust of a nuee ardente
- fractureA crack or break in a hard object or material, typically a bone or a body of rock
- blocksA large solid piece of hard material, esp. rock, stone, or wood, typically with flat surfaces on each side
- limestonesA hard sedimentary rock, composed mainly of calcium carbonate or dolomite, used as building material and in the making of cement
- taconiteslow-grade iron ore, containing about 27 percent iron and 51 percent silica, found as a hard rock formation in the Lake Superior region
- taconitelow-grade iron ore, containing about 27 percent iron and 51 percent silica, found as a hard rock formation in the Lake Superior region
- porcelaina hard, fine-grained, sonorous, nonporous, and usually translucent and white ceramic ware that consists essentially of kaolin, quartz, and a feldspathic rock and is fired at a high temperature called also hard-paste porcelain true porcelain