Cone 6: Rose quartz is a glossy, opaque, variegated pink glaze that breaks over texture. Pastel pink micro-crystallization may develop on vertical surfaces. Cone 10: Glaze darkens and desaturates to a dusty rose with red and mauve variegation and white micro-crystallization. Breaks mauve grey over texture. TIP:  This glaze is fluid; Apply receding coats to avoid run off on vertical pieces and practice caution in combination. Over-application of Rose Quartz can cause surface issues. Thin application results in vibrant pink; light pink variegation develops with additional application.  The micro-crystallization effect is enhanced in a rapidly cooling kiln.