Assertion: true purple tourmaline | /r/HasProperty | unheard
Facets:
Source sentences:
text: Of course, until only a few years ago prior to Mozambique Tourmaline Discovery, True Purple Tourmaline was unheard of; therefore, when the world discovered that there was such a color in this gemstone, it was deemed very rare and very collectable.
text: Of course, until only a few years ago prior to Mozambique Tourmaline Discovery, True Purple Tourmaline was unheard of; therefore, when the world discovered that there was such a color in this gemstone, it was deemed very rare and very collectable.