"Hornstone" is a word in ENGLISH
A siliceous stone, a variety of quartz, closely
resembling flint, but more brittle; -- called also chert.
Mothers tend toward right on most things.
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There was a communist named Rudolph. One day he looked out the window and said, "It looks like a storm is coming." "No it isn't," said his wife. "Besides, how would you know?" "Because," he responded, "Rudolph the Red knows rain, dear."
A mineral of the feldspar family, triclinic in crystallization, and in composition a silicate of alumina and soda. It is …
Read the complete definitionA silicate containing a large amount of cerium. It is usually black in color, opaque, and is related to epidote …
Read the complete definitionA common mineral embracing many varieties varying in color and in composition. It occurs in monoclinic crystals; also massive, generally …
Read the complete definitionA peculiar small siliceous spicule having a denticulated wheel at each end; -- found in freshwater sponges.
Read the complete definitionA silicate of aluminium, occurring usually in thick rhombic prisms, nearly square, of a grayish or pale reddish tint. It …
Read the complete definitionA mineral relating to the zeolites, usually occurring in square prisms or octahedrons with pearly luster on the cleavage surface. …
Read the complete definitionA siliceous variety of calcite, or carbonate of lime, having a silvery-white, pearly luster, and a waving or curved lamellar …
Read the complete definitionA mineral occurring in triclinic crystals approaching pyroxene in angle, and of a greenish black color. It is a silicate …
Read the complete definitionLydian stone, or black jasper, a variety of siliceous or flinty slate, of a grayish or bluish black color. It …
Read the complete definitionA mineral of great hardness, and, when transparent, of much beauty. It occurs in hexagonal prisms, commonly of a green …
Read the complete definitionA green siliceous stone sprinkled with red jasper, as if with blood; hence the name; -- called also heliotrope.
Read the complete definitionAny one of several varieties of friable earthy clay, usually colored more or less strongly red by oxide of iron, …
Read the complete definitionA granular mineral of a grayish or yellowish color, found in Bolton, Massachusetts. It is a silicate of magnesium, belonging …
Read the complete definitionA double salt of boric and silicic acids, as in the natural minerals tourmaline, datolite, etc.
Read the complete definitionA rare zeolitic mineral occurring in white monoclinic crystals with pearly luster. It is a hydrous silicate of aluminia, baryta, …
Read the complete definitionA variety of enstatite, often having a bronzelike luster. It is a silicate of magnesia and iron, of the pyroxene …
Read the complete definitionA mineral occuring in glassy rhombohedral crystals, varying, in color from white to yellow or red. It is essentially a …
Read the complete definitionA mineral, the hydrous silicate of zinc.
Read the complete definitionConsisting of, or containing calcareous and siliceous earths.
Read the complete definitionA mineral of a brownish of cherry-red color, commonly massive. It is a hydrous silicate of cerium and allied metals.
Read the complete definition