rruff.info
13/08/2020 The RRUFF Project is
creating a complete set of high quality spectral data from well characterized
minerals and is developing the technology to share this information with the
world. Our collected data provides a standard for mineralogists, geoscientists,
gemologists and the general public for the identification of minerals both on
earth and for planetary exploration.
volcanoes.usgs.gov/vsc/glossary 14/11/2020 USGS: Volcano Hazards Program. Volcano
Hazards Program Glossary.
www.achate.at 27/04/2020
Faszination. Achat und Jaspis.
www.clays.org 27/09/2020
The Clay Minerals Society. CMS is an international organization devoted
to the study of clays and clay minerals. We encourage exchange of research
findings through the publication of Clays and Clay Minerals, sponsorship of an
annual meeting, online access to the archived journals, special publications,
the Source Clays Repository, and other network building activities.
www.galleries.com 02/10/2020 Amethyst Galleries' Mineral Gallery
describes more than 600 minerals, with thousands of images and specimens. The descriptions include searchable
mineralogical data, plus other information of interest to students and rock
hounds!
www.usgs.gov/natural-hazards/volcano-hazards 14/11/2020
Volcano Hazards. There are 169 potentially active volcanoes in the U.S.
The mission of the USGS Volcano Hazards Program is to enhance public safety and
minimize social and economic disruption from volcanic unrest and eruption.
www.usgs.gov/observatories/cascades-volcano-observatory 14/11/2020
Cascades Volcano Observatory. The U.S. Geological Survey's
Cascades Volcano Observatory strives to serve the national interest by helping
people to live knowledgeably and safely with volcanoes in WA, OR, and ID.+