Significats de calcareous spar en anglès

There was no crevice near, or any vestige of calcareous spar.

Thin veins of calcareous spar and quartz intersected the granite.

Formation of lime-stone by aqueous solution; calcareous spar; white marble; antient statue of Hercules resting from his labours.

The other appears to have been calcareous spar, but the greatest part of it is now dissolved out.

These were petrified trees, eleven being silicified, and from thirty to forty converted into coarsely-crystallized white calcareous spar.

In the fissures of granite or porphery quartz is formed; in the fissures of limestone calcareous spar is produced.

This is an observation which I have had frequent opportunities of making, with respect to masses of calcareous spar.

The crystals are about an inch high in the shape of dogtooth or calcareous spar, covered with a dark ferruginous matter.

The calcareous sandstone consisted of grains of quartz cemented by calcareous spar, and contained fragments of shells of the littorina or turbo.

I have a specimen of such a cavity, in which the bitumen is in sphericles, or rounded drops, immersed in the calcareous spar.

At one spot, large masses of calcareous spar were scattered over the ground; they were probably derived from a vein in the granite.

We have strata consolidated by calcareous spar, a thing perfectly distinguishable from the stalactical concretion of calcareous earth, in consequence of aqueous solution.

In the left bank at the camp I found a conglomerate rock, consisting of water-worn fragments of serpentine and trap, cemented by calcareous spar.

We passed two small hillocks of milkwhite quartz; fragments of this rock, as well as of calcareous spar, were often observed scattered over the ground.