26:
409:
454:
488:
88:
165:
188:
483:
447:
78:
473:
440:
345:
478:
248:
178:
363:
263:
Very poorly soluble in cold water. Partially dissolved by prolonged submersion in boiling water.
140:
424:
353:
206:
48:
304:
283:
mineral (hence the name) of calcium and magnesium, whose chemical composition is CaMgB
349:
98:
467:
367:
228:
110:
25:
300:
380:
128:
420:
308:
258:
119:
103:
41:
238:
408:
358:
333:
416:
391:
280:
312:
428:
267:
257:
247:
237:
227:
205:
197:
187:
177:
164:
156:
151:
139:
127:
109:
97:
87:
77:
47:
37:
32:
18:
448:
8:
243:Measured: 60° to 66°, calculated: 62° to 66°
147:c = 8.23 ; β = 102.59°; Z = 2
455:
441:
357:
324:
15:
7:
405:
403:
334:"IMA–CNMNC approved mineral symbols"
299:O. It was discovered in 1834 in the
427:. You can help Knowledge (XXG) by
311:. Hydroboracite is a minor borate
14:
407:
24:
415:This article about a specific
1:
505:
489:Minerals in space group 13
402:
23:
338:Mineralogical Magazine
89:Strunz classification
145:a = 11.76, b = 6.68
484:Monoclinic minerals
359:10.1180/mgm.2021.43
350:2021MinM...85..291W
332:Warr, L.N. (2021).
198:Optical properties
436:
435:
274:
273:
219:= 1.534 – 1.535 n
215:= 1.520 – 1.523 n
160:Colourless, white
123:
496:
457:
450:
443:
411:
404:
394:
389:
383:
378:
372:
371:
361:
329:
207:Refractive index
170:
117:
115:Prismatic (2/m)
54:
53:(repeating unit)
28:
16:
504:
503:
499:
498:
497:
495:
494:
493:
464:
463:
462:
461:
400:
398:
397:
390:
386:
381:Webmineral data
379:
375:
331:
330:
326:
321:
305:Atyrau Province
298:
294:
290:
286:
253:Relatively weak
223:= 1.569 – 1.571
222:
218:
214:
183:Vitreous, silky
168:
146:
116:
72:
68:
64:
60:
52:
51:
12:
11:
5:
502:
500:
492:
491:
486:
481:
476:
466:
465:
460:
459:
452:
445:
437:
434:
433:
412:
396:
395:
384:
373:
344:(3): 291–320.
323:
322:
320:
317:
296:
292:
288:
284:
279:is a hydrated
272:
271:
269:
265:
264:
261:
255:
254:
251:
245:
244:
241:
235:
234:
231:
225:
224:
220:
216:
212:
209:
203:
202:
199:
195:
194:
191:
185:
184:
181:
175:
174:
171:
162:
161:
158:
154:
153:
152:Identification
149:
148:
143:
137:
136:
131:
125:
124:
113:
107:
106:
101:
99:Crystal system
95:
94:
91:
85:
84:
81:
75:
74:
70:
66:
62:
58:
55:
45:
44:
39:
35:
34:
30:
29:
21:
20:
13:
10:
9:
6:
4:
3:
2:
501:
490:
487:
485:
482:
480:
477:
475:
474:Mineral stubs
472:
471:
469:
458:
453:
451:
446:
444:
439:
438:
432:
430:
426:
422:
418:
413:
410:
406:
401:
393:
388:
385:
382:
377:
374:
369:
365:
360:
355:
351:
347:
343:
339:
335:
328:
325:
318:
316:
314:
310:
306:
302:
282:
278:
277:Hydroboracite
270:
266:
262:
260:
256:
252:
250:
246:
242:
240:
236:
232:
230:
229:Birefringence
226:
210:
208:
204:
200:
196:
192:
190:
186:
182:
180:
176:
172:
167:
163:
159:
155:
150:
144:
142:
138:
135:
132:
130:
126:
121:
114:
112:
111:Crystal class
108:
105:
102:
100:
96:
92:
90:
86:
82:
80:
76:
56:
50:
46:
43:
40:
36:
31:
27:
22:
19:Hydroboracite
17:
429:expanding it
414:
399:
387:
376:
341:
337:
327:
276:
275:
133:
201:Biaxial (+)
193:Transparent
189:Diaphaneity
129:Space group
479:Inoborates
468:Categories
421:mineraloid
319:References
309:Kazakhstan
301:Inder lake
268:References
259:Solubility
249:Dispersion
166:Mohs scale
120:H-M symbol
104:Monoclinic
79:IMA symbol
42:Inoborates
368:235729616
315:mineral.
233:δ = 0.049
141:Unit cell
239:2V angle
169:hardness
38:Category
417:mineral
346:Bibcode
93:6.CB.15
49:Formula
33:General
392:Mindat
366:
281:borate
179:Luster
157:Colour
118:(same
423:is a
364:S2CID
57:CaMgB
425:stub
291:(OH)
134:P2/c
65:(OH)
419:or
354:doi
313:ore
295:·3H
83:Hbo
69:·3H
470::
362:.
352:.
342:85
340:.
336:.
307:,
303:,
456:e
449:t
442:v
431:.
370:.
356::
348::
297:2
293:6
289:8
287:O
285:6
221:γ
217:β
213:α
211:n
173:2
122:)
73:O
71:2
67:6
63:8
61:O
59:6
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
