Silicon Investor (SI) -- The First Internet Community

STOCKTALK

We've detected that you're using an ad content blocking browser plug-in or feature. Ads provide a critical source of revenue to the continued operation of Silicon Investor. We ask that you disable ad blocking while on Silicon Investor in the best interests of our community. If you are not using an ad blocker but are still receiving this message, make sure your browser's tracking protection is set to the 'standard' level.

Politics : Stockman Scott's Political Debate Porch -- Ignore unavailable to you. Want to Upgrade?

To: Jim Willie CB who wrote (7662)	10/1/2002 10:46:41 AM
From: TigerPaw	Respond to of 89467

Chert and Flint. Both of these rocks are fossilised algae. From about 3.5 billion years ago to maybe 750,000 years ago these were the dominant life forms. Now they (stromatalites) are abundant only in unusual salty environments since they are tempting grazing ground for sea-life. mooquack.com Chert is not quite as hard as flint, but still makes good arrow points. sonandersonartifacts.com TP

To: Jim Willie CB who wrote (7662)	10/1/2002 8:40:16 PM
From: T L Comiskey	Read Replies (1) \| Respond to of 89467

Main Entry: chert <http://www.m-w.com/images/audio.gif> <http://www.m-w.com/images/audio.gif> Pronunciation: 'ch&rt, 'chat Function: noun Etymology: origin unknown Date: 1679 : a rock resembling flint and consisting essentially of a large amount of fibrous chalcedony with smaller amounts of cryptocrystalline quartz and amorphous silica Main Entry: chal·ce·do·ny <http://www.m-w.com/images/audio.gif> <http://www.m-w.com/images/audio.gif> Pronunciation: kal-'se-d&n-E, chal-; 'kal-s&-"dO-nE, 'chal-, -"dä- Function: noun Inflected Form(s): plural -nies Etymology: Middle English calcedonie, a precious stone, from Late Latin chalcedonius, from Greek ChalkEdOn Chalcedon Date: 13th century : a translucent quartz that is commonly pale blue or gray with nearly waxlike luster - chal·ce·don·ic <http://www.m-w.com/images/audio.gif> /"kal-s&-'dä-nik/ adjective