Chalk produce, and thus widely used in the developing world, calcium-based chalk can be made where the crumbling particles are larger and thus produce less dust, and is marketed as "dustless chalk". Colored chalks, pastel chalks, and sidewalk chalk (shaped into larger sticks and often colored), used to draw on sidewalks, streets, and driveways, are primarily made of gypsum. Chalk is a source of quicklime by thermal decomposition, or slaked lime following quenching of quicklime with water. In southeast England, deneholes are a notable example of ancient chalk pits. Such bell pits may also mark the sites of ancient flint mines,
You-Are-Loved Chalk Message Project You-Are-Loved Chalk Message Project The You-Are-Loved Chalk Message Project was an annual US-wide initiative that combated hateful rhetoric aimed at the lesbian, gay, bisexual, transgender, and queer (LGBTQ) community through the use of positive, uplifting chalk messages. The project's mission was to send messages of hope to members of the LGBTQ community who were struggling with depression or feelings of isolation. It served as a suicide prevention awareness campaign for LGBTQ college students. The You-Are-Loved Chalk Message Project was founded at Drew University (Madison, New Jersey) in 2005 in response to personal tragedy. It went nationwide in 2009 as a