Comments on: What is the gold/bronze-colored stuff on top of plants in plug sheets? http://goldinflorence.com/479/what-is-the-goldbronze-colored-stuff-on-top-of-plants-in-plug-sheets/ Gold Discussion Board Fri, 30 Jul 2010 22:53:27 +0000 http://wordpress.org/?v=2.8.2 hourly 1 By: Anon e Mouse http://goldinflorence.com/479/what-is-the-goldbronze-colored-stuff-on-top-of-plants-in-plug-sheets/comment-page-1/#comment-1908 Anon e Mouse Tue, 13 Jan 2009 06:16:03 +0000 http://goldinflorence.com/?p=479#comment-1908 It is probably Horticultural Vermiculite. Vermiculite is a member of the phyllosilicate group of minerals, resembling mica in appearance. Vermiculite is mica rock that has been heated until it expands into what look like tiny multi-paged books. It is used to retain water and provide texture for strong root growth. Vermiculite is pH neutral, sterile and insoluble. It is probably Horticultural Vermiculite.

Vermiculite is a member of the phyllosilicate group of minerals, resembling mica in appearance.

Vermiculite is mica rock that has been heated until it expands into what look like tiny multi-paged books. It is used to retain water and provide texture for strong root growth. Vermiculite is pH neutral, sterile and insoluble.

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