Virtual CollectionMain MenuThe Brock University Earth Sciences Virtual Collectionrocks, minerals, and fossils in a digital format.IndexHow to get to where you're goingERSC 3P90Index of samples for ERSC 3P90 LabsERSC 1P01 Mineral Sample image IndexDirections to the pictures of images for first-year Earth Science classesERSC1P01 Igneous Sample IndexIndex of igneous samples for first-year labsERSC1P01 Metamorphic Sample IndexIndex of metamorphic samples for first-year labsERSC 1P01 FossilsERSC Misc Rock Samples (unnamed)Whole rock sample imageryIgneous Rock samplesA place to explore rocks that have crystallized from molten materialVolcanic SamplesVolcanic samplesMeteoritesSedimentology Sample IndexAccess to sedimentology sample imageryMineralogy Quick Quiz PicturesA smattering of samples from the mineralogy collection to test your ability to recognize samples visually.A small collection of polished thin section viewsA small collection of polished thin section viewsRick Cheel4c2cab10f340dae1a53f5b584acd3f5528e40a41Mariek Schmidt3b678a5bd42eb8bf9a55fb761e5f17b11ce872c1Justin Pentescoe1b177acadc784b8497de179c36bc8e98f92c5e3Jordyn Schumacher063e6b5cd9d78fa0c5456d90b29abfa4f185e97cFrank Fuetendee05431475b87c68ebf15bbea4bfeac11808e9eAstride Silis79b69046c55b5f6cbc0bffd051aa83b3482e29a8
Diaphaneity7Y
12020-09-10T20:48:32+00:00Astride Silis79b69046c55b5f6cbc0bffd051aa83b3482e29a8194View of sample with NO light source shining through it (compare to sample Diaphaneity7Z )plain2020-09-10T21:02:53+00:00Astride Silis79b69046c55b5f6cbc0bffd051aa83b3482e29a8
Static image (click to expand): Diaphaneity (Click to expand) (Samples 7X, 7Y, 7Z)
Hardness:
This sample has the hardness of quartz
Streak: Some of the powder left on the streak plate (H=6.5) has been rubbed off on the piece of felt in the picture. You can click on the picture to expand it.
Acid test: This sample does not react to 10% HCl acid
