Mastodawn

Show thread

earthling Oct 16

Quartz with biotic goethite filaments.

Photograph: Manfred Heising/Nikon Small World

#photomicrography
#quarts
#goethite

Claudia Zahn Mar 22, 2025

#Goethite on #Quartz. San Valentín Mine (San Valentín Open pit), Sancti Spiritu, Sierra Minera de Cartagena-La Unión, La Unión, Murcia, #Spain.
Specimen size 24x19x11mm
By #GeologicalWondersToo / Carlos Pareja
#Geology #GeologyPage #Nature #Minerals #Crystals #Gems #Nature #NatureLovers #NaturePhotography #Photographer #RockPorn

Claudia Zahn Feb 15, 2025

Spherical spray of #Goethite with a black-coated #Hematite rose
Marmoraton Mine, Marmora, Ontario.
Photo by Michael Bainbridge
By #GeologicalWondersToo / Karen Kemp
#GeologyPage #Nature #Minerals #Crystals #Gems #Nature #NatureLovers #NaturePhotography #Photographer #RockPorn

Claudia Zahn Feb 15, 2025

Red-coated #Hematite rosettes with #Goethite needles
Marmora, Ontario
Field of view: 2.4 x 1.8 mm
Photo by Michael Bainbridge
By #GeologicalWondersToo / Karen Kemp
#GeologyPage #Nature #Minerals #Crystals #Gems #Nature #NatureLovers #NaturePhotography #Photographer #RockPorn

Matt Willemsen Dec 23, 2023

NASA Unveils First-Ever Global Maps of Earth’s Surface Minerals
https://scitechdaily.com/nasa-unveils-first-ever-global-maps-of-earths-surface-minerals/ #NASA #EMIT #global #map #surface #minerals #dust #source #hematite #goethite #kaolinite

NASA Unveils First-Ever Global Maps of Earth’s Surface Minerals

EMIT delivers first-of-a-kind maps of minerals in Earth’s dust-source areas, enabling scientists to model the fine particles’ role in climate change and more. NASA’s EMIT mission has created the first comprehensive maps of the world’s mineral dust-source regions, providing precise locations of 10

SciTechDaily

Mineral Cup & Ore Cup Sep 6, 2023

The gap is closing in the battle of limpet teeth vs shiny gem!

But #Goethite still needs to gather just over 40 votes in just under 20 minutes if it wants to beat out #Topaz to compete in #MinCup23 next round.

Vicky Veritas Sep 6, 2023

Ask your husband (I asked mine:), your mom, your next-door neighbor! It’s that close! Vote Goethite now! Link below! #Goethite

Vote here: https://www.mineralcup.org/2023/campaigns/round-1-match-6

Round 1 Match 6 — Mineral Cup

Welcome to introductory geology lab class: A precious gem crosses iron oxide as the standard for Mohs hardness 8 Topaz going against brown ochre and the main component of rust Goethite. At least for this quiz you don’t need to break out your identification tools! Which will it be?

Mineral Cup

Show thread