Emily Brown on Twitter: "Sharing some vanadinite for D2 of #ScienceAdventCalendar. These gorgeous red crystals are a primary source of vanadium, which is cool and all, but what's cooler is that they
![Mineral Natrolite, Natrolite crystals and Analcime with apophlite, Dean quarry, St. Keverne, Cornwall, England Stock Photo - Alamy Mineral Natrolite, Natrolite crystals and Analcime with apophlite, Dean quarry, St. Keverne, Cornwall, England Stock Photo - Alamy](https://c8.alamy.com/comp/A3WF2B/mineral-natrolite-natrolite-crystals-and-analcime-with-apophlite-dean-A3WF2B.jpg)
Mineral Natrolite, Natrolite crystals and Analcime with apophlite, Dean quarry, St. Keverne, Cornwall, England Stock Photo - Alamy
![English: Makatite, Zakharovite, Natrolite Locality: Demix-Varennes quarry, Saint-Amable sill, Varennes & St-Amable, Lajemmerais RCM, Montérégie, Québec, Canada Size 1.7 x 3 cm. Found Sept 2000. MOB coll. The faintly greenish radiating makatite English: Makatite, Zakharovite, Natrolite Locality: Demix-Varennes quarry, Saint-Amable sill, Varennes & St-Amable, Lajemmerais RCM, Montérégie, Québec, Canada Size 1.7 x 3 cm. Found Sept 2000. MOB coll. The faintly greenish radiating makatite](https://c8.alamy.com/comp/2BBBN4N/english-makatite-zakharovite-natrolite-locality-demix-varennes-quarry-saint-amable-sill-varennes-st-amable-lajemmerais-rcm-montrgie-qubec-canada-size-17-x-3-cm-found-sept-2000-mob-coll-the-faintly-greenish-radiating-makatite-was-associated-with-relatively!-abundant-varennesite-but-on-this-specimen-the-orangebrown-areas-are-zakharovite-not-varennesite-the-dark-areas-in-the-makatite-are-terminations-of-stubby-natrolite-xls-in-other-specimens-from-this-find-a-few-dark-sea-green-blades-of-makatite-are-embedded-in-the-paler-material-deutsch-makatit-zakharovit-natrol-2BBBN4N.jpg)
English: Makatite, Zakharovite, Natrolite Locality: Demix-Varennes quarry, Saint-Amable sill, Varennes & St-Amable, Lajemmerais RCM, Montérégie, Québec, Canada Size 1.7 x 3 cm. Found Sept 2000. MOB coll. The faintly greenish radiating makatite
![a-l. Photographs of the zeolite and associated minerals in cavities and... | Download Scientific Diagram a-l. Photographs of the zeolite and associated minerals in cavities and... | Download Scientific Diagram](https://www.researchgate.net/profile/Emel-Abdioglu-Yazar/publication/258859097/figure/fig3/AS:297186098204673@1447866095239/a-l-Photographs-of-the-zeolite-and-associated-minerals-in-cavities-and-veins-of-alkaline_Q640.jpg)