Roche et pétrographie

717 topics in this forum

1. un gneiss ?

   By AlainR, July 30
   • 12 replies
   • 370 views
   • 
   • jean francois06
   • Monday at 01:12 PM

2. Dolomies hydrothermales - site de Ranero, Espagne

   By phoscorite, July 24
   • 5 replies
   • 401 views
   • 
   • phoscorite
   • July 25

3. Qu'est ce que ce joli galet ?

   By crapahutrotineur, June 4
   • 5 replies
   • 595 views
   • 
   • Kayou
   • July 18

4. Roche apparence volcanique 1 2 3 4 5

   By Carped201, April 2
   • 122 replies
   • 7.4k views
   • 
   • mr42
   • July 14

5. Roc de Courlande (63) 1 2 3

   By pat_der2003, May 6
   • 51 replies
   • 2.8k views
   • 
   • mr42
   • July 13

6. Recherche désèspérement blocs de houille

   By camillecharlotte, April 5, 2016
   • 13 replies
   • 2.6k views
   • 
   • le sablais
   • July 2

7. Météorite ou galet rubéfié ??

   By kilauea1011, June 30
   • 2 replies
   • 286 views
   • 
   • kilauea1011
   • June 30

8. Montagne Noire : géologie, minéraux, paysages,... 1 2 3 4 6

   By Kayou, September 17, 2008
   • 130 replies
   • 55.9k views
   • 
   • Kayou
   • June 26

9. forme globuleuse

   By zéolite, June 18
   • 6 replies
   • 542 views
   • 
   • zéolite
   • June 19

10. Les scories métallurgiques 1 2 3 4 8

    By mr42, September 15, 2017
    • 198 replies
    • 48.5k views
    • 
    • mr42
    • June 15

11. Minéraux opaque.

    By zéolite, June 5
    • 0 replies
    • 283 views
    • 
    • zéolite
    • June 5

12. Mines de marbre du Saillon

    By Géomac, May 22
    • 10 replies
    • 799 views
    • 
    • Géomac
    • May 27

13. Curiosité sédimentation lacustre

    By Nightstorm, May 14
    • 12 replies
    • 908 views
    • 
    • le sablais
    • May 20

14. Demande de renseignement - pierres rivière ardennaise.

    By kOOk, May 20
    • 4 replies
    • 629 views
    • 
    • Mystique1979
    • May 20

15. quelle est la nature de cet objet?

    By moox, February 13
    • 1 reply
    • 507 views
    • 
    • phoscorite
    • May 19

16. Identification de fentes de dessiccation

    By nicolasb, May 5
    • 1 reply
    • 427 views
    • 
    • AMEDE
    • May 12

17. Lave Cantalienne

    By zéolite, May 6
    • 4 replies
    • 590 views
    • 
    • zéolite
    • May 7

18. Quelle roche est-ce?

    By Géomac, May 2
    • 4 replies
    • 714 views
    • 
    • Géomac
    • May 5

19. Extinction roulante 1 2

    By zéolite, January 28
    • 48 replies
    • 3.4k views
    • 
    • zéolite
    • May 5

20. identification d'un "mineral" trouvé

    By archie85, May 4
    • 1 reply
    • 424 views
    • 
    • korozyf4x4
    • May 4

21. Pegmatite graphique ? 1 2

    By mr42, April 22
    • 47 replies
    • 2.3k views
    • 
    • mr42
    • May 3

22. Pyroxénite 65

    By zéolite, May 1
    • 2 replies
    • 429 views
    • 
    • zéolite
    • May 1

23. Roche qui attire l'aimant

    By Carped201, April 25
    • 10 replies
    • 816 views
    • 
    • Yotna
    • April 30

24. Détermination roche Hautes Alpes

    By FERN63, January 29
    • 15 replies
    • 2k views
    • 
    • sapinvert
    • April 30

25. classification d'une roche carbonatée

    By Maeva02, April 13
    • 2 replies
    • 486 views
    • 
    • jean francois06
    • April 22