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
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

October 2011

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

November 2011

22. The most photographed rock
23. Word games with ignimbrite
24. What is black sand
25. Maerl from Ireland
26. Alone on the volcano
27. Every rock has a story
28. Silica and sand
29. Staurolite
30. Brain games with sand grains
31. Parrotfish makes sand
32. Anorthosite and labradorescence
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
42. Spodumene
43. The rare beauty of quartz crystals
44. Star sand and Sun sand
45. Magnetite
46. Obsidian

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
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
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
71. Sandstone maze in Luxembourg
72. Diabase
73. What I have learnad as a geoblogger
74. Dolomite
75. Rock that nearly killed me

January 2012

76. Cassiterite
77. Mineral quiz
78. Spinel
79. New weapon in my arsenal
80. Chromite
81. How to remove dust from macro photos
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
92. Epidote from Thassos
93. Houses built from diamonds and impact breccia
94. Is Papakolea the only green beach
95. Serpentine
96. Mylonite from Estonia
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
111. Zircon
112. Crazily migmatized gneiss from Norway
113. Impact breccia from the Ries crater
114. Gigapans of sand
115. Dunite
116. Half a billion year old clay
117. Dike in 3D
118. Two more sand gigapans
119. Dunite xenolith
120. Pyrope
121. Pillow basalt more than a kilometer above sea level
122. Agate breccia
123. Minerals in sand according to Devismes
124. Yet another mantle xenolith
125. U- and V-shaped valleys
126. Quartz
127. White beach in Tenerife
128. Gabbro

March 2012

129. QAPF diagram
130. What happens when magma attacks carbonates
131. Talc
132. Antozonite
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
140. Red quartz from Spain
141. Wollastonite, diopside, and andradite
142. Charoite
143. Corundum
144. Sphene or titanite
145. Gold in numbers
146. Andradite
147. Retrograde eclogite
148. Serpentinite
149. Vesuvianite
150. Zircon pegmatite from Norway
151. Natrolite
152. Epidote
153. TAS diagram
154. Graphite
155. Wollastonite
156. Spessartine pegmatite from Norway
157. Augite
158. How the Pyrenees were made
159. Trachyte

April 2012

160. Charnockite
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 gain, long term gain
203. Greisen
204. Pumice
205. Sulfur, gypsum, and hydrocarbons

August 2012

206. Calcite
207. Laterite
208. Gneiss
209. Conglomerate
210. Syenite
211. Crocidolite
212. Peridotite
213. Where are they coming from
214. Sandstone

September 2012

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

October 2012

229. Coquina
230. Limestone
231. Eclogite
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
240. Folds at Loughshinny

November 2012

241. Pyrite
242. Porphyry
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
250. Potassium

December 2012

251. I am back from the Canaries
252. Pahoehoe lava
253. Aa lava
254. Basalt
255. Colors in sand
256. What is sand
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
276. Speckled mystery rock
277. “Rainbow” of a scoria cone
278. Scoria

February 2013

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

March 2013

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

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
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
318. Hawaiian style joke
319. New beginning