Snapshots from the Tucson 2000 Gem and Mineral Show
Home Tucson Show Reports Email List Bob's Rock Shop
Tucson Report Index Next Page Previous Page

The Main Event III - Making Little Rockhounds

These volcanic 'hail stones' were formed during an explosive eruption when the cloud of volcanic debris mixed with water vapor in clouds to make a sticky mud that deposited around dust or rock fragments.



A skull cast under close examination and scrutiny. Several species of interesting dinosaur are also known as the "sail-reptiles" because they sported erect "sails" of soft tissue which were supported by rod-like extensions of their vertebrae. This sail may have played a role in body temperature regulation, by serving as a solar heat collector to warm the dinosaur when cold and as a radiator for surplus heat when hot. There is a Dimetrodon depicted in the poster above.







Tucson Report Index Next Page Previous Page

Index to Advertisers
AA Mineral Specimens
Alpine Minerals
Arizona Mineral Company
CuttingRocks.com
DesignerStones.com
John Betts Fine Minerals
Lawrence H. Conklin, Mineralogist
CR-Scientific
Extinctions Fossils\
FacetingAccessories.com
FacetingRough.com
Gemart Services
GreatCabochons.com
GreatRough.com
GreatSlabs.com
LapidaryMachines.com
Mineral of the Month Club
The Mineralogical Record Magazine
PrettyRock
Rock of Ages
RocksandGems.info
Rocks and Minerals Magazine
RockWare Earth Science Software
Simkev Micromounts
Shannon & Son's Minerals
Silver Supplies
The Sunnywood Collection
TumblingMachines.com
TurquoiseBeads.com
TurquoiseRough.com
Tysons' Fine Minerals
UC Minerals
Dan Weinrich Fine Minerals
Wilensky Mineral Video
Williams Minerals Company
Wright's Rock Shop

Home Tucson Show Reports Email List Bob's Rock Shop
All images and content copyright ©1995-2010 by Bob Keller, webmaster of Bob's Rock Shop. All rights reserved.