All posts

The list of all posts published on Sandatlas in chronological order. Popular posts are annotated in bold font.

February 2010

1. Quartz sand (32)
2. Continental sand
3. Sand with hematitic pigment
4. Heavy mineral sand
5. Volcanic sand
6. Olivine sand
7. Garnet sand
8. Biogenic sand
9. Mixed carbonate-silicate sand
10. Lithic sand

December 2010

11. Ghana sand

October 2011

12. Conglomerate from the Pyrenees RD
13. Pumice and scoria from Atlantis
14. As it should be done
15. Roses from fire
16. Desert sand
17. Jotnian sandstone RD
18. Rocks from Fennoscandia RD
19. What is sand made of (4)
20. Sand minerals (23)
21. Greensand and green sand

November 2011

22. The most photographed rock
23. Word games with ignimbrite
24. What is black sand (7)
25. Maerl from Ireland
26. Alone on the volcano
27. Every rock has a story
28. Silica and sand (8)
29. Staurolite
30. Brain games with sand grains
31. Parrotfish makes sand
32. Anorthosite and labradorescence (48)
33. Ooid sand
34. Lunar anorthosite
35. Sand from Bretignolles-sur-Mer
36. Rapakivi
37. Mysterious dunes in Estonia
38. Ilmenite
39. Gypsum sand
40. Sand that remembers the rock it once was
41. Marvellous marble quarry in Karelia RD
42. Spodumene
43. The rare beauty of quartz crystals
44. Star sand and Sun sand
45. Magnetite
46. Obsidian (25)

December 2011

47. Wonders of sand – rounded forams
48. Sand full of mysteries
49. Sand full of life
50. Remnants of bottle messages
51. Colorful sea urchin spines
52. Coral sand from Sint Maarten
53. Amphiboles
54. Highest volcanoes are in South America. Why?
55. Heavy minerals (33)
56. The most common foram of Hawaii
57. Syncline in 3D
58. Sandstone columns in the middle of a crater
59. Glacial arch
60. Almandine RD
61. Volcanic sand taken apart
62. Goethite
63. Actinolite sand from Ontario
64. In Memory of Arnold Bouma
65. Rounded star sand
66. Volcanic mystery in Santorini
67. Sand grain Christmas card
68. Golden lava flows
69. Herkimer diamonds
70. How to take good macro photos (50)
71. Sandstone maze in Luxembourg
72. Diabase (18)
73. What I have learnad as a geoblogger
74. Dolomite
75. Rock that nearly killed me

January 2012

76. Cassiterite
77. Mineral quiz RD
78. Spinel
79. New weapon in my arsenal RD
80. Chromite
81. How to remove dust from macro photos RD
82. Volcanic ash of St. Helens
83. Limburgite
84. Kyanite
85. Globigerina ooze
86. Is there anything that…
87. Scoria from Etna
88. Olivine basalt from Oahu
89. Sodalite
90. Blue sand from Namibia
91. Most famous gneiss in the Internet RD
92. Epidote from Thassos RD
93. Houses built from diamonds and impact breccia
94. Is Papakolea the only green beach (34)
95. Serpentine
96. Mylonite from Estonia RD
97. Rutile
98. Leucoxene
99. What makes minerals brittle
100. Sandatlas 100
101. Sri Lanka geology and HD crash
102. The most important use of ice
103. Mica

February 2012

104. Hydromagnesite sand from Turkey
105. Dike in the Isle of Mull
106. Migmatite from Norway
107. The top 10 reasons I love sand
108. What do you mean “hydrothermal”?
109. Monazite
110. Hydrothermally altered granite RD
111. Zircon
112. Crazily migmatized gneiss from Norway RD
113. Impact breccia from the Ries crater RD
114. Gigapans of sand
115. Dunite (41)
116. Half a billion year old clay
117. Dike in 3D
118. Two more sand gigapans
119. Dunite xenolith RD
120. Pyrope
121. Pillow basalt more than a kilometer above sea level
122. Agate breccia RD
123. Minerals in sand according to Devismes
124. Yet another mantle xenolith RD
125. U- and V-shaped valleys (15)
126. Quartz
127. White beach in Tenerife
128. Gabbro (6)

March 2012

129. QAPF diagram
130. What happens when magma attacks carbonates
131. Talc
132. Antozonite RD
133. Glauconite
134. Fluorite
135. Beryl
136. Geological wonders at Cap de Creus
137. Zinnwaldite
138. Graphite schist with pyrite
139. Granitic pegmatite from Germany RD
140. Red quartz from Spain RD
141. Wollastonite, diopside, and andradite RD
142. Charoite
143. Corundum
144. Sphene or titanite
145. Gold in numbers
146. Andradite
147. Retrograde eclogite RD
148. Serpentinite (19)
149. Vesuvianite
150. Zircon pegmatite from Norway RD
151. Natrolite
152. Epidote
153. TAS diagram
154. Graphite
155. Wollastonite
156. Spessartine pegmatite from Norway RD
157. Augite
158. How the Pyrenees were made
159. Trachyte

April 2012

160. Charnockite (49)
161. Molybdenite
162. Topaz
163. Microcline
164. Celestine
165. Nepheline pegmatite
166. Pothole
167. Geology of Cyprus: laminated gypsum
168. Day full of geology
169. Conglomerate in Cyprus
170. Slope failure in Cyprus
171. Today I visited the mantle
172. Truly classic geological site in Cyprus
173. Petra tou Romiou
174. Swallowtail gypsum
175. Pillow lava in Cyprus

May 2012

176. Slickenside in Cyprus
177. Geological pilgrimage to the USA
178. Choletria: a village in the wrong place
179. I just had to write it up
180. Umber
181. Gabbro pegmatite
182. Ultramafic lava knoll in Cyprus
183. MSc

June 2012

184. Massive pyrite in Cyprus
185. Diamond
186. Siderite
187. Harzburgite
188. Sheeted dikes of the Troodos Ophiolite
189. I will go to Ireland
190. Meteorite crater near my home
191. Epidosite
192. Bedded chert in Cyprus
193. Dog’s Bay in Connemara
194. Giant’s Causeway
195. Ireland trip
196. Thousands of sand sculptures
197. Sole mark in the Old Red
198. Video of squeaking sand
199. Top 10 geosites in Estonia
200. Ancient lahar in Ireland

July 2012

201. Field notes
202. Short term pain, long term gain
203. Greisen
204. Pumice (46)
205. Sulfur, gypsum, and hydrocarbons

August 2012

206. Calcite
207. Laterite (9)
208. Gneiss (21)
209. Conglomerate (22)
210. Syenite (36)
211. Crocidolite
212. Peridotite (29)
213. Where are they coming from
214. Sandstone (5)

September 2012

215. Pegmatite (12)
216. Monzonite (45)
217. Amphibolite (30)
218. Chert (10)
219. Shungite
220. Arkose (11)
221. Dolomite rock (16)
222. Oil shale
223. What is opaque color
224. Oolite (24)
225. Orpiment
226. Dendritic growth in crystals
227. Collage of sand
228. Variscite

October 2012

229. Coquina (40)
230. Limestone (3)
231. Eclogite (31)
232. Sand of Mannin Bay
233. Halite
234. Coral sand
235. Sandatlas has a birthday
236. Riebeckite
237. Are we really moving backwards?
238. Andalusite
239. Composition of the crust (1)
240. Folds at Loughshinny

November 2012

241. Pyrite (38)
242. Porphyry (28)
243. Aplite
244. A little fun with diagrams
245. How to isolate an image on white
246. How to quickly enhance your pictures
247. The Corralejo Dunes are not from the Sahara
248. Going to the Canaries
249. Principle of inclusions (35)
250. Potassium

December 2012

251. I am back from the Canaries
252. Pahoehoe lava RD
253. Aa lava RD
254. Basalt (2)
255. Colors in sand
256. What is sand (43)
257. Biological interlude from the Canaries
258. Geology and The Hobbit

January 2013

259. Don’t visit Cumbre Vieja in wintertime
260. Scenery of La Palma
261. From the perspective of a captive born
262. Block-and-ash flow deposits
263. Building stone gallery
264. Ignimbrite
265. I am going to Tenerife
266. First glimpse of Tenerife
267. Coulee like a huge pahoehoe
268. Beautiful dike in Tenerife
269. Back from Tenerife
270. Pinnacle of breccia in Tenerife
271. Roques de Garcia
272. Granadilla pumice
273. Block-and-ash flow deposit or lithic breccia?
274. Tenerife ignimbrite
275. Tuff (37)
276. Speckled mystery rock
277. “Rainbow” of a scoria cone
278. Scoria (26)

February 2013

279. Volcanic bomb
280. Igneous rocks (27)
281. S-dike and SS-fold
282. Diatomaceous earth
283. Anthracite
284. Xenolith
285. Smoky quartz
286. Bauxite (44)
287. Blue, black and white
288. Quartzite (14)

March 2013

289. Chrysotile
290. Malachite
291. Conchoidal fracture (39)
292. Olivine (20)
293. First time in America
294. Great circles and flight paths (42)
295. Bog iron
296. Garnet (17)

April 2013

297. Flowing lava of Pu’u O’o
298. Intro to my California trip
299. America from above
300. Geology and photography
301. Highest lake in Hawaii
302. Bread-crust bomb RD
303. Hawaiite
304. Videos of flowing lava
305. Ventifacts and dreikanters
306. Tallest mountain in the world
307. Racetrack Playa and moving rocks

May 2013

308. Allochthonous and authigenic
309. One pebble with two lives
310. Fun and work in geology
311. Collage of sedimentary rocks
312. Mushroom Rock
313. Telescopes of Mauna Kea
314. Xenoliths in Hawaiian lava
315. Pele’s hair
316. Lava haze
317. Pfeiffer Beach sand (47)
318. Hawaiian style joke
319. New beginning

June 2013

320. The Little Mermaid: an alternative perspective

July 2013

321. What next for Sandatlas?
322. Boundary between Europe and America
323. Invasive for sure but beautiful nevertheless
324. Waterfall like a mini Iceland
325. White storks at sunset
326. Mudcracks in Gran Canaria
327. Sea urchin and sea bluebells
328. Maar
329. Strokkur in action
330. Largest glacier in Europe
331. Mossy lava field
332. Largest waterfall in Europe

August 2013

333. Green Sand Beach

January 2014

334. Sun pillar

April 2014

335. Going to Space

November 2014

336. Coastal rocks of Saint Lucia

January 2015

337. Types of Lava Flows (13)
338. Volcanic gases

May 2015

339. Nautiloids of Morocco

June 2015

340. Map of Africa in rocks
341. Discovering Norway
342. Graphic granite RD
343. Chert and chalk of Stevns Klint
344. Magnesite

July 2015

345. Ingredients of pegmatite
346. Mylonite
347. Monomineralic rocks
348. Feldspar

August 2015

349. Metamorphosed heavy mineral sand
350. Chalcopyrite
351. Rhomb-porphyry

September 2015

352. Barite
353. Diopside
354. Granite
355. Troctolite
356. Hematite
357. Banded iron formation
358. Biotite

October 2015

359. Diorite
360. Foyaite
361. Hedgehog rock
362. Carbonatite
363. Pyroxenite
364. Diamictite
365. Shale

November 2015

366. Rocks of Norway
367. Marble

December 2015

368. Schist