Although loam is a combination of sand, silt and clay, adding sand to your clay soil, or vice versa, will not create loam. Doing so will result in something like cement.
According to Merriam-Webster, family values are values especially of a traditional or conservative kind which are held to promote the sound functioning of the family and to strengthen the fabric of society.
For example, if one of your core values is, My family comes before my job, and they see you consistently working so many hours that you rarely have time to spend with them, they'll conclude that your real core value is, My work is more important than my family..