https://www.bluequartzcentral.com/home daily 1.0 2025-11-28 https://images.squarespace-cdn.com/content/v1/69244edd91bad12f7bd465f4/64aa8ee2-14bb-4f2a-b76a-2efa25b56a80/1+1%2C5x.jpg https://images.squarespace-cdn.com/content/v1/69244edd91bad12f7bd465f4/d92bba46-e64e-4133-92fb-4dbb826a9be6/Poza+avatar+site.jpg https://www.bluequartzcentral.com/about daily 0.75 2025-11-26 https://images.squarespace-cdn.com/content/v1/69244edd91bad12f7bd465f4/9a313978-99a5-48e4-a746-3f8fc651da78/wdqdqw.JPG https://images.squarespace-cdn.com/content/v1/69244edd91bad12f7bd465f4/1cd56b1e-a999-4a0e-bc2f-99d819b609bd/Photo-by-John-Getchel-Red-sky-at-night-Fire-in-the-evening-sky-Tucson-Arizona.jpg https://images.squarespace-cdn.com/content/v1/69244edd91bad12f7bd465f4/9d924177-4b70-48cd-bc34-e1ac494040f7/vffe.JPG https://images.squarespace-cdn.com/content/v1/69244edd91bad12f7bd465f4/d9e80606-e91a-4491-a94d-132254360e41/gfdd.JPG https://images.squarespace-cdn.com/content/v1/69244edd91bad12f7bd465f4/5564b2c5-10a3-453d-8ac9-64ef66b0f5db/Distributia+globala.JPG https://www.bluequartzcentral.com/contact daily 0.75 2025-11-26 https://images.squarespace-cdn.com/content/v1/69244edd91bad12f7bd465f4/2beb711f-a1c8-49af-bc07-65c702cd267b/02+2.jpg https://www.bluequartzcentral.com/gallery daily 0.75 2025-11-26 https://images.squarespace-cdn.com/content/v1/69244edd91bad12f7bd465f4/eff22899-4bc4-485d-8ab8-23b8e3b71b4f/ap3.jpg Gallery Polished section of the Albești metagranite (Romania) showing blue quartz with color zoning. https://images.squarespace-cdn.com/content/v1/69244edd91bad12f7bd465f4/b4506658-dab1-4e54-8253-f917e784d871/DSCN16881.jpg Gallery Polished section of the Albești metagranite (Romania) showing blue quartz with color zoning. https://images.squarespace-cdn.com/content/v1/69244edd91bad12f7bd465f4/1764152123704-8E0EJ4U8I8MKAAVJF714/Canabravinha%2B%25282%2529.jpg Gallery Rio dos Remédios metarhyolite (Bahia, Brazil). https://images.squarespace-cdn.com/content/v1/69244edd91bad12f7bd465f4/1764152157257-D7QS7VZAZ7E2FJVEBJY6/IMG_1162.png Gallery A grain of blue quartz from the Llano rhyolite (Texas, USA). https://images.squarespace-cdn.com/content/v1/69244edd91bad12f7bd465f4/c2388c8c-7177-4259-8ac3-9c494389527c/IMG_1193.JPG Gallery Polished section of the Llano rhyolite (Texas, USA). The next two photos show the same grain at various angles relative to the light source and its characteristic chatoyancy https://images.squarespace-cdn.com/content/v1/69244edd91bad12f7bd465f4/b7c7e780-d6a1-4472-98b9-c1ad8acc8a4a/IMG_1191.JPG Gallery Polished section of the Llano rhyolite (Texas, USA) showing its characteristic chatoyancy caused by submicron ilmenite inclusions. https://images.squarespace-cdn.com/content/v1/69244edd91bad12f7bd465f4/5b435605-8daa-4424-9f61-3210a1141512/IMG_1190.JPG Gallery Polished section of the Llano rhyolite (Texas, USA) showing its characteristic chatoyancy caused by submicron ilmenite inclusions. https://images.squarespace-cdn.com/content/v1/69244edd91bad12f7bd465f4/53f7b734-7531-45c5-b5e0-829401aa72bd/IMG_4681.JPG Gallery Rio dos Remédios metarhyolite (Bahia, Brazil). https://images.squarespace-cdn.com/content/v1/69244edd91bad12f7bd465f4/7ad6b604-fad2-4961-b5a4-1f8b367e8e46/IMG_4682.JPG Gallery Rio dos Remédios metarhyolite (Bahia, Brazil). https://images.squarespace-cdn.com/content/v1/69244edd91bad12f7bd465f4/1764089564222-CC2V7Y3G8JRG0ST6HS7U/IMG_9355.png Gallery Llano rhyolite (Texas, USA). https://images.squarespace-cdn.com/content/v1/69244edd91bad12f7bd465f4/d1e0d9c9-0630-4f02-809c-6d4e39c8427c/Pietrosu+Bistritei+porhyroid+gneiss%2C+Romania.jpg Gallery Pietrosu Bistriței porhyroid (Romania). https://images.squarespace-cdn.com/content/v1/69244edd91bad12f7bd465f4/c9e10d65-e875-491d-8761-95a5aed65383/01+2.jpg Gallery A blue quartz grain from a Rio dos Remédios metarhyolite (Bahia, Brazil) polished sample. https://images.squarespace-cdn.com/content/v1/69244edd91bad12f7bd465f4/cf690bd8-67d4-4b5b-8b84-1946762fbb22/1+0%2C7x+1.jpg Gallery Polished section of the Albești metagranite (Romania) showing blue quartz with color zoning. https://images.squarespace-cdn.com/content/v1/69244edd91bad12f7bd465f4/cc652a55-6a78-4a9d-8c7e-c04fb4f5056f/1+0%2C7x.jpg Gallery The polished section of the Albești metagranite (Romania) from the previous image, showing the color change in transmitted light. https://images.squarespace-cdn.com/content/v1/69244edd91bad12f7bd465f4/a3ba6190-f346-4e0c-a2d5-d71f318f6ed3/4+4.5x.jpg Gallery Blue quartz from the Lainici-Păiuș quartzite (Romania) showing chatoyancy caused by rutile needles. https://images.squarespace-cdn.com/content/v1/69244edd91bad12f7bd465f4/a0b82819-6951-4b71-baba-359808e943d7/06+1.5.jpg Gallery Polished section of the Rio dos Remédios alkali rhyolite (Bahia, Brazil). https://images.squarespace-cdn.com/content/v1/69244edd91bad12f7bd465f4/e6afda9a-1ff9-4ebb-9c59-586ef08b7608/007.jpg Gallery Polished section of the Albești metagranite (Romania) showing blue quartz with color zoning. https://images.squarespace-cdn.com/content/v1/69244edd91bad12f7bd465f4/9d66184b-ab3f-45fd-98b2-638a8a744ac6/08.jpg Gallery Polished section of the Rio dos Remédios metarhyolite (Bahia, Brazil) showing blue quartz with color zoning. https://images.squarespace-cdn.com/content/v1/69244edd91bad12f7bd465f4/eb8e70d9-4aa6-4235-b252-f07452bdecc5/010.jpg Gallery Polished section of the Albești metagranite (Romania) showing blue quartz with color zoning. https://images.squarespace-cdn.com/content/v1/69244edd91bad12f7bd465f4/8f55a113-8dff-43a6-95d1-6e7932f5bc89/10+2.jpg Gallery Polished section of the Rio dos Remédios alkali rhyolite (Bahia, Brazil). https://images.squarespace-cdn.com/content/v1/69244edd91bad12f7bd465f4/c0c826d2-6917-40ce-8bdf-c040d9b22ef7/012.jpg Gallery Polished section of the Albești metagranite (Romania) showing blue quartz with color zoning. https://images.squarespace-cdn.com/content/v1/69244edd91bad12f7bd465f4/a0d07f28-c5a0-4d31-969a-519d2e28dd7d/12+3x.jpg Gallery Polished sample of a Småland (Sweden) type granite. https://images.squarespace-cdn.com/content/v1/69244edd91bad12f7bd465f4/af5a54e2-050f-494e-a29d-6682df3dbce2/19+3.jpg Gallery Polished section of the Rio dos Remédios metarhyolite (Bahia, Brazil). https://images.squarespace-cdn.com/content/v1/69244edd91bad12f7bd465f4/a16b946b-0c35-4a7c-b7c4-c9113b2cbd82/21+20x+1N.jpg Gallery Microphotograph of a petrographic thin section showing exsolved rutile needles in the blue quart from the Milbank granite (South Dakota, USA). https://images.squarespace-cdn.com/content/v1/69244edd91bad12f7bd465f4/ba47c648-a960-48d4-956c-98e647a2e87f/32+2.jpg Gallery Polished section of the Rio dos Remédios metarhyolite (Bahia, Brazil) showing a blue quartz grain with multiple color zones. https://images.squarespace-cdn.com/content/v1/69244edd91bad12f7bd465f4/779efcd7-c7b1-4910-a0b2-c3534de0b8d7/50+2.jpg Gallery Polished section of the Rio dos Remédios metarhyolite (Bahia, Brazil). https://images.squarespace-cdn.com/content/v1/69244edd91bad12f7bd465f4/392ef815-da5b-429e-8d0f-804248624f51/53+2.jpg Gallery Polished section of the Rio dos Remédios metarhyolite (Bahia, Brazil) showing blue quartz with two types of color zoning. https://images.squarespace-cdn.com/content/v1/69244edd91bad12f7bd465f4/01f25643-23f7-4c65-80f0-77ef13e56e93/COS+010.jpg Gallery Polished section of the Milbank granite (South Dakota, USA) showing blue qaurtz with characteristic chatoyancy caused by exolved rutile needles. https://images.squarespace-cdn.com/content/v1/69244edd91bad12f7bd465f4/71f421cf-7e27-4fcf-a382-74df1808d014/AB+057.jpg Gallery Polished section of the Albești metagranite (Romania). https://images.squarespace-cdn.com/content/v1/69244edd91bad12f7bd465f4/11197c05-804f-445f-b8fd-496671dbf185/AB+058.jpg Gallery The polished section of the Albești metagranite (Romania) from the previous image, showing the color change in transmitted light. https://images.squarespace-cdn.com/content/v1/69244edd91bad12f7bd465f4/01d0fc39-d002-40ff-8c9a-069e277bac43/LL+002.jpg Gallery Polished section of the Llano rhyolite (Texas, USA) showing a blue quartz grain with a color zoning shaped by the magmatic corrosion gulfs, and chatoyancy, https://images.squarespace-cdn.com/content/v1/69244edd91bad12f7bd465f4/1a3be580-726c-4caa-ad16-3c6e1e90faa1/LL+004.jpg Gallery Polished section of the Llano rhyolite (Texas, USA) showing blue quartz with color zoning and chatoyancy. https://images.squarespace-cdn.com/content/v1/69244edd91bad12f7bd465f4/86d603a6-0017-4858-b21d-bbfdc65f37e7/LL+005.jpg Gallery Polished section of the Llano rhyolite (Texas, USA). https://images.squarespace-cdn.com/content/v1/69244edd91bad12f7bd465f4/5344a194-65dd-4d71-92f9-dd129a367461/LL+006.jpg Gallery The polished section of the Llano rhyolite (Texas, USA) from the previous image, showing the color change in transmitted light. https://images.squarespace-cdn.com/content/v1/69244edd91bad12f7bd465f4/ef8bd30e-7cb5-4714-b3ce-a1d40589ff36/LL+007.jpg Gallery Polished section of the Llano rhyolite (Texas, USA). https://images.squarespace-cdn.com/content/v1/69244edd91bad12f7bd465f4/b253296d-891a-423c-989c-b7a364a3b361/LL+008.jpg Gallery The polished section of the Llano rhyolite (Texas, USA) from the previous image, showing the color change in transmitted light. https://images.squarespace-cdn.com/content/v1/69244edd91bad12f7bd465f4/7e087cbc-e0f4-4bcd-ba4b-8798707faeee/LL+refl+2x.jpg Gallery Polished section of the Llano rhyolite (Texas, USA). https://images.squarespace-cdn.com/content/v1/69244edd91bad12f7bd465f4/20008009-db38-4fac-8a7b-fa4191bd3757/LL+trans+2x.jpg Gallery The polished section of the Llano rhyolite (Texas, USA) from the previous image, showing the color change in transmitted light. https://images.squarespace-cdn.com/content/v1/69244edd91bad12f7bd465f4/7cb7bc50-7992-43de-820f-a94a2879d0f4/Mbk+4.jpg Gallery Polished section of the Milbank granite (South Dakota, USA) showing blue qaurtz with characteristic chatoyancy caused by exolved rutile needles. https://images.squarespace-cdn.com/content/v1/69244edd91bad12f7bd465f4/6516a342-f627-4728-960f-532d2a1637f8/Mbk+6.jpg Gallery Polished section of the Milbank granite (South Dakota, USA) showing blue qaurtz with characteristic chatoyancy caused by exolved rutile needles. https://images.squarespace-cdn.com/content/v1/69244edd91bad12f7bd465f4/75a73cb7-fa50-4b55-808c-9620c0eafe8f/Mbk+8.jpg Gallery Polished section of the Milbank granite (South Dakota, USA) showing blue qaurtz with characteristic chatoyancy caused by exolved rutile needles. https://images.squarespace-cdn.com/content/v1/69244edd91bad12f7bd465f4/1f7418ab-ce85-44a9-85f8-57522d85c63b/Mbk+9.jpg Gallery Polished section of the Milbank granite (South Dakota, USA) showing blue qaurtz with characteristic chatoyancy caused by exolved rutile needles. https://images.squarespace-cdn.com/content/v1/69244edd91bad12f7bd465f4/6344d3d0-e575-4cef-acdb-b2c5da6d875a/Mbk.jpg Gallery Polished section of the Milbank granite (South Dakota, USA) showing blue qaurtz with characteristic chatoyancy caused by exolved rutile needles. https://images.squarespace-cdn.com/content/v1/69244edd91bad12f7bd465f4/fd55692a-3b51-4f21-b24b-973e6942f89f/PB+7.jpg Gallery Polished section of the Pietrosu Bistriței porhyroid (Romania) showing blue quartz with color zoning. https://images.squarespace-cdn.com/content/v1/69244edd91bad12f7bd465f4/6105de36-e73b-4f79-96ef-83b33defa78e/RdR+1+refl+3+2x.jpg Gallery Polished section of the Rio dos Remédios metarhyolite (Bahia, Brazil). https://images.squarespace-cdn.com/content/v1/69244edd91bad12f7bd465f4/4801a10f-8c6d-4802-bc4c-b5b9821f0a78/RdR+1+trans+3+2x.jpg Gallery The polished section of the Rio dos Remédios metarhyolite (Bahia, Brazil) from the previous image, showing the color change in transmitted light. https://images.squarespace-cdn.com/content/v1/69244edd91bad12f7bd465f4/1cfdf931-67b9-4b8d-a804-6e64735841a7/VB+3+2x+1.jpg Gallery Polished section of the Lalu granite (Romania). https://images.squarespace-cdn.com/content/v1/69244edd91bad12f7bd465f4/7375b133-c3ba-46f2-aa9b-76698866265a/VB+3+2x.jpg Gallery Polished section of the Lalu granite (Romania). https://www.bluequartzcentral.com/projects daily 0.75 2025-11-25 https://www.bluequartzcentral.com/get-involved daily 0.75 2025-11-25 https://images.squarespace-cdn.com/content/v1/69244edd91bad12f7bd465f4/1347ea91-b8b5-46aa-8be2-a7c5cb317303/Mbk+6+-+2.jpg https://www.bluequartzcentral.com/donate daily 0.75 2025-11-26 https://images.squarespace-cdn.com/content/v1/69244edd91bad12f7bd465f4/2e1b8cff-2bb0-424a-ba99-97d937cbd48c/Banner+Home.jpg