Mastodawn

"Repurposing gemstone polishing waste to create smart cement"

https://techxplore.com/news/2025-10-repurposing-gemstone-smart-cement.html

Repurposing gemstone polishing waste to create smart cement

Cement is one of the most-used materials in the world, and one of the highest emitters of global CO2 emissions. As demand for cement continues to grow, researchers are looking for alternatives to help reduce its environmental impacts.

Tech Xplore

Inked Goddess Creations®2d ago

Start off on the right foot with our exclusive Essential Witchcraft Starter Kit. It contains 28 magickal items to help you begin or supplement your practice, including herbs, altar items, gemstones and more. A must-have for any aspiring witch!

https://www.inkedgoddesscreations.com/products/witchcraft-starter-kit
#Witchcraft #StarterKit #Herbs #Candles #Altar #Gemstones #Grimoire #BabyWitch #Beginner #Magick

Elysia Macht Sep 30

Crown Emerald Copper, Desert Queen Dioptase!

https://www.mineralcup.org/2025/vote/r4m02

Please vote for the pyroelectric, HOT desert mama! It's so amazing it can look like moss but is electric if you heat it up 😲

So, did someone call #electric #Mosstodon? The most arid deserts in the world have none, but grow moss-like dioptase to make up for it. The world's amazing, so spread the love & vote!
Forbidden #broccoli or green #cauliflower?

Dioptase was first mistaken to be emerald and gets its colour and toxicity from copper. Hence, Emerald Copper and Desert Emerald nicknames! Although it's toxic - no licking! 😅 - the vivid green tones make it great for healing & the heart. 💚💎🧡

Here's some different mossy shapes to spot in different photos, if you want to look toward the ground instead of what you see in clouds! Thanks for voting!

#MinCup25 #Dioptase with emerandine 🥦 #Moss #Angel #Horse #Fish #Desert #DesertEmerald #Tugtupite #Mineral #Emerandine #Malachite #Copper #Toxic #Emerald #Gemstones #Jewellery #Healing #Spirituality

Newsramp Sep 19

Experience the world's most exceptional colored gemstones at Roger Dery Trunk Show. James & Sons Fine Jewelers brings rare, ethically sourced stones to Chicagoland this September. #Gemstones #JewelryEvent

John Faithfull 🌍🇪🇺🏴󠁧󠁢󠁳󠁣󠁴󠁿🧡✊🏻✊🏿Sep 4

#MinCup25 Two fine minerals facing off in today's bout: the exotic, chemically and structurally intriguing perovskite vs the ubiquitous chameleon that is calcite.

https://mastodon.scot/deck/@MineralCup@mastodon.social/115143274766404499

This year I'm going for #calcite Among other things, it makes for some completely bonkers, unusably fragile gemstones. like this one, which turns a ray of light entering the stone into 8 rays leaving the stone. More here: https://www.gia.edu/gems-gemology/winter-1984-calcite-hurlbut (with free link to full pdf)

#Geology #Gemstones #Optics