Lydian stone

Lydian stone

A black, flinty stone, such as a silicified shale or slate, or a variety of quartz allied to chert or jasper, whose smoothed surface was formerly used to test the purity or fineness of alloys of gold and silver by comparing the streak left on the stone when rubbed by the metal with that made by an alloy of predetermined composition.

This is auto-generated content. You can help to improve it.

0 0

Improve it

Add an image

Part of Speech: noun
Synonym(s):
Blossary:
Industry/Domain: Mining
Category: General mining; Mineral mining
Government Agency: USBM
Product: Dictionary of Mining, Mineral, & Related Terms - 2nd Edition
Acronym-Abbreviation:

Collect to Blossary

Other Languages:

Related terms

Lydian

Language; Dictionaries

Of or pertaining to Lydia, a country of Asia Minor, or to its inhabitants; hence, soft; effeminate; -- said especially of one of the ancient Greek modes or keys, the music in ...

stone

Earth science; Soil science

A general term for rock, especially as used in construction. A hard clump of minerals that forms in a part of body.

stone

Arts & crafts; Sculpture

1. Cut rock, suitable for carving and building. One of the traditional materials of the sculptor, it has been carved, drilled, and polished since prehistoric times. The most ...

stone

Engineering; Coastal engineering

Quarried or artificially-broken rock for use in construction, either as aggregate or cut into shaped blocks as dimension stone.

stone

Sports; Curling

Curling stones are made of granite and are circular in shape. The stones weigh about 42 pounds (19.09 kg) and must not weigh more then 44 pounds (20 kg). The stone has a maximum ...

asteroid mining

Mining; General mining

The future industry of sending spacecraft to asteroids in order to harvest their natural resources and bring them back to civilization for use. On April 24th 2012, the first real ...