Assertion: mineral's surface | /r/HasProperty | exposed
Facets:
Source sentences:
text: As the crystals are not bonded face to face, the entire surface is exposed and available for surface reactions
text: As the crystals are not bonded face to face, the entire surface is exposed and available for surface reactions
text: With one hand, hold the specimen of unknown hardness firmly against a table top so that the surface to be tested is exposed and accessible.