"Tetrahedrite" is a word in ENGLISH
A sulphide of antimony and copper, with small
quantities of other metals. It is a very common ore of copper, and some
varieties yield a considerable presentage of silver. Called also gray
copper ore, fahlore, and panabase.
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A guy comes walking into a bar with a turtle in his hand. The turtle's one eye is black and blue, two of his legs are bandaged, and his whole shell is taped together with duct tape. The bartender looks at the guy and asks: "What's wrong with your turtle?" "Not a thing," the man responds, this beat up turtle is faster than your dog!" "Not a chance!", replies the barkeep. "Okay then, says the guy... you take your dog and let him stand at one end of the bar. Then go and stand at the other end of the room and call your dog. I'll bet you $500 that before your dog reaches you, my turtle will be there." So the bartender, thinking it's an easy $500, agrees. The bartender goes to the other side of the bar, and on the count of three calls his dog. Suddenly the guy picks up his turtle and throws it across the room, narrowly missing the bartender, and smashing into the wall and says - "I WIN... Told you it'll be there before your dog!"
A valuable ore of copper, containing copper, iron, and sulphur; -- also called purple copper ore (or erubescite), in allusion …
Read the complete definitionA mineral of a steel-gray to black color and metallic luster, occurring crystallized, often in twin crystals shaped like cogwheels …
Read the complete definitionHeavy waste in tin and copper ores.
Read the complete definitionCopper pyrites, or yellow copper ore; a common ore of copper, containing copper, iron, and sulphur. It occurs massive and …
Read the complete definitionThe red oxide of copper; red copper; an important ore of copper, occurring massive and in isometric crystals.
Read the complete definitionPowdered copper pyrites used in the amalgamation of ores of silver, as at the Spanish mines of Mexico and South …
Read the complete definitionA partly reduced copper sulphide, obtained by alternately roasting and melting copper ore in separating the metal from associated iron …
Read the complete definitionAn earthy black oxide of copper, arising from the decomposition of other ores.
Read the complete definitionAn olive-green mineral, a hydrous arseniate of copper; olive ore.
Read the complete definitionThe native form of a metal, whether free and uncombined, as gold, copper, etc., or combined, as iron, lead, etc. …
Read the complete definitionAn iron-black ore of silver, consisting of silver, sulphur, and antimony, with some copper and arsenic.
Read the complete definition